APA (7e ed.) Bronvermelding

Não informado. (2000). University of California publications in botany. University of California.

Chicago (17e ed.) Bronvermelding

Não informado. University of California Publications in Botany. Berkeley, Calif: University of California, 2000.

MLA (8e ed.) Bronvermelding

Não informado. University of California Publications in Botany. University of California, 2000.

Let op: Deze citaties zijn niet altijd 100% accuraat.