APA aipamena

Ramos, M. M. International bibliography on cropping systems, 1973-1974.

Chicago Style aipamena

Ramos, Mila Medina. International Bibliography on Cropping Systems, 1973-1974.

MLA aipamena

Ramos, Mila Medina. International Bibliography on Cropping Systems, 1973-1974.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.