APA-viite (7. p.)

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.].

Chicago-viite (17. p.)

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.

MLA-viite (8. p.)

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.