APA-viite

Quinlan, M. M. (1984). Mulches from two tropical tree species Erythrina poeppigiana (Walpers) O.F. Cook and Gmelina arborea Rox. as nitrogen sources in the production of maize (Zea mays L.).

Chicago-tyylinen lähdeviittaus

Quinlan, Mary M. Mulches From Two Tropical Tree Species Erythrina Poeppigiana (Walpers) O.F. Cook and Gmelina Arborea Rox. As Nitrogen Sources in the Production of Maize (Zea Mays L.). 1984.

MLA-viite

Quinlan, Mary M. Mulches From Two Tropical Tree Species Erythrina Poeppigiana (Walpers) O.F. Cook and Gmelina Arborea Rox. As Nitrogen Sources in the Production of Maize (Zea Mays L.). 1984.

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