APA (7e ed.) Bronvermelding

Não informado. (1960). Greenhouse, garden, grass. Plant Research Institute, Department of Agriculture.

Chicago (17e ed.) Bronvermelding

Não informado. Greenhouse, Garden, Grass. Ottawa: Plant Research Institute, Department of Agriculture, 1960.

MLA (8e ed.) Bronvermelding

Não informado. Greenhouse, Garden, Grass. Plant Research Institute, Department of Agriculture, 1960.

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