Cita APA (7th ed.)

Berger, J. (1969). The world's major fibre crops: Their cultivation and manuring. Centre d'Etude de l'Azote.

Cita Chicago (17th ed.)

Berger, Josef. The World's Major Fibre Crops: Their Cultivation and Manuring. Zurich: Centre d'Etude de l'Azote, 1969.

Cita MLA (9th ed.)

Berger, Josef. The World's Major Fibre Crops: Their Cultivation and Manuring. Centre d'Etude de l'Azote, 1969.