Cita APA (7th ed.)

Maxted, N. (1995). An ecogeographical study of Vicia: Subgenus Vicia. IPGRI.

Cita Chicago (17th ed.)

Maxted, Nigel. An Ecogeographical Study of Vicia: Subgenus Vicia. Roma, República Italiana: IPGRI, 1995.

Cita MLA (9th ed.)

Maxted, Nigel. An Ecogeographical Study of Vicia: Subgenus Vicia. IPGRI, 1995.