| 978-958-9439-36-4 | Actual cases handbook nine | Centro Internacional de Agricultura Tropical | Ciat
Ipra
Óscar Vargas
Trady Brekelbaum
| 1995 |
| 978-958-9439-69-2 | Clear accounts. Handbook No 11 | Centro Internacional de Agricultura Tropical | Ciat
Ipra
Óscar Vargas López
Trady Brekelbaum
| 1996 |
| 978-958-9439-37-1 | Designing the trial handbook five | Centro Internacional de Agricultura Tropical | Ciat
Ipra
Óscar Vargas
Trady Brekelbaum
| 1995 |
| 978-958-9439-39-5 | Evaluacon of the trial handbook six | Centro Internacional de Agricultura Tropical | Ciat
Ipra
Óscar Vargas
Trady Brekelbaum
| 1995 |
| 978-958-9439-68-5 | Experimentos also count. Handbook No 10 | Centro Internacional de Agricultura Tropical | Ciat
Ipra
Óscar Vargas López
Trady Brekelbaum
| 1996 |
| 978-958-9439-71-5 | Guidelines to help us along the way. Handbook No 13 | Centro Internacional de Agricultura Tropical | Ciat
Ipra
Óscar Vargas López
Trady Brekelbaum
| 1996 |
| 978-958-9439-70-8 | It's good to know in time how we are doing. Handbook no 12 | Centro Internacional de Agricultura Tropical | Ciat
Ipra
Óscar Vargas López
Trady Brekelbaum
| 1996 |
| 978-958-9439-40-1 | Planning the trial handbook four | Centro Internacional de Agricultura Tropical | Ciat
Ipra
Óscar Vargas
Trady Brekelbaum
| 1995 |
| 978-958-9439-43-2 | The diagnosis handbook three | Centro Internacional de Agricultura Tropical | Ciat
Ipra
Óscar Vargas
Trady Brekelbaum
| 1995 |
| 978-958-9439-41-8 | The local agricultural research committees handbook two | Centro Internacional de Agricultura Tropical | Ciat
Ipra
Óscar Vargas
Trady Brekelbaum
| 1995 |
| 978-958-9439-35-7 | The trial handbook one | Centro Internacional de Agricultura Tropical | Ciat
Ipra
Óscar Vargas
Trady Brekelbaum
| 1995 |
| 978-958-9439-38-8 | Things that can happen handbook seven | Centro Internacional de Agricultura Tropical | Ciat
Ipra
Óscar Vargas
Trady Brekelbaum
| 1995 |
| 978-958-9439-42-5 | Trial record book Handbook ten | Centro Internacional de Agricultura Tropical | Ciat
Ipra
Óscar Vargas
Trady Brekelbaum
| 1995 |