Cita APA

Delfs- Fritz, W. (1970). Citrus cultivation and fertilization. Rurt Stickstoff.

Citación estilo Chicago

Delfs- Fritz, W. Citrus Cultivation and Fertilization. West Germany: Rurt Stickstoff, 1970.

Cita MLA

Delfs- Fritz, W. Citrus Cultivation and Fertilization. Rurt Stickstoff, 1970.

Warning: These citations may not always be 100% accurate.