APA (7e ed.) Bronvermelding

Não informado. (1914). Contributions from the Department of Botany. Pennsylvania State College, Department of Botany.

Chicago (17e ed.) Bronvermelding

Não informado. Contributions from the Department of Botany. State College, Pa: Pennsylvania State College, Department of Botany, 1914.

MLA (8e ed.) Bronvermelding

Não informado. Contributions from the Department of Botany. Pennsylvania State College, Department of Botany, 1914.

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