Cita APA (7th ed.)

Hammerschlag, F. A., & Litz, R. E. (1992). Biotechnology of perennial fruit crops. CAB International.

Cita Chicago (17th ed.)

Hammerschlag, F. A., i R. E. Litz. Biotechnology of Perennial Fruit Crops. Wallingford: CAB International, 1992.

Cita MLA (9th ed.)

Hammerschlag, F. A., i R. E. Litz. Biotechnology of Perennial Fruit Crops. CAB International, 1992.