The boomerang crime

by Meir, David, Shapiro, Mark, Jacobs, Terry
Published 1982

Light strips: arboriculture in parallel 10

by Vargas Mena, Emilio
Published 1982

Shortage and survival in Central America

by Baudoin, Mario
Published 1982

Agribusiness in America

by Hilje Quirós, Luko
Published 1982

Justification and possibilities of rapprochement between traditional medicine and official medicine

by Sepúlveda, Jaime
Published 1982

Oak regeneration (Quercus sp.) In the highland forests of Costa Rica

by Jiménez Martín, Wilberth
Published 1982

Forest Plantation Management

by González Gabaldón, Manuel
Published 1981

Horizontal interception in the highland forests of Costa Rica and its hydrological importance

by Zadroga, Frank
Published 1981

Contamination by waste from the Cañas riverbed

by Bravo Chacón, Juan
Published 1981

Species for planting

by Zeaser, Donald
Published 1981

Is the global strategy for conservation an answer to the ecological challenge?

by Rodríguez, Silvia
Published 1981

Plants: energy hope

by Miller, William D., Hillen, L.W., Alium, Paulo de T., Calvin, Melvin, Calvin, Gene E., Aragao Craveiro, Afranio
Published 1981

Use of pesticides and insecticides

by Karunairajan, Richards D.
Published 1981

The environment in Mexico and Latin America

by Mora, Eduardo
Published 1981

Commentary to document Sorting methods

by González, Manuel
Published 1981

Global conservation strategy

by Alfaro, María del Rosario
Published 1981

The myth of overpopulation

by Romero, Rodia
Published 1981

The biosphere above all

by Johnson, Brian
Published 1981

Green Bread of the Future

by Neumainer, Thomas
Published 1981

Traditional medicine. Your current rating

by Balbuena, Emilio A.
Published 1981