Παραπομπή σε μορφή APA (7η εκδ.)

Fischler, M. (1997). Legume green manures in the management of maize-bean cropping systems in eastern Africa with special reference to crotalaria (C. ochroleuca G. Don.). s.n.].

Παραπομπή σε μορφή Chicago (17η εκδ.)

Fischler, Martin. Legume Green Manures in the Management of Maize-bean Cropping Systems in Eastern Africa with Special Reference to Crotalaria (C. Ochroleuca G. Don.). [S.l.: s.n.], 1997.

Παραπομπή σε μορφή MLA (8th εκδ.)

Fischler, Martin. Legume Green Manures in the Management of Maize-bean Cropping Systems in Eastern Africa with Special Reference to Crotalaria (C. Ochroleuca G. Don.). s.n.], 1997.