APA-viite

Hernández Guerra, O. R. (1995). Yield and financial analysis of an agroforestry system with coffee (Coffea arabica cv caturra) and poro (Erythrina poeppigiana) under different densities of laurel (Cordia alliodora).

Chicago-tyylinen lähdeviittaus

Hernández Guerra, Oscar R. Yield and Financial Analysis of an Agroforestry System With Coffee (Coffea Arabica Cv Caturra) and Poro (Erythrina Poeppigiana) Under Different Densities of Laurel (Cordia Alliodora). 1995.

MLA-viite

Hernández Guerra, Oscar R. Yield and Financial Analysis of an Agroforestry System With Coffee (Coffea Arabica Cv Caturra) and Poro (Erythrina Poeppigiana) Under Different Densities of Laurel (Cordia Alliodora). 1995.

Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.