Wellman, F. L. (1972). Tropical American plant disease (neotropical phytopathology problems). Scarecrow Press.
Citazione stile Chigago Style (17a edizione)Wellman, Frederick L. Tropical American Plant Disease (neotropical Phytopathology Problems). Metuchen, N.J.: Scarecrow Press, 1972.
Citatione MLA (8a ed.)Wellman, Frederick L. Tropical American Plant Disease (neotropical Phytopathology Problems). Scarecrow Press, 1972.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.