APA (7e ed.) Bronvermelding

Não informado. (1950). Agricultural and horticultural Engineering abstracts. National Institute of Agricultural Engineering.

Chicago (17e ed.) Bronvermelding

Não informado. Agricultural and Horticultural Engineering Abstracts. Silsoe, Inglaterra: National Institute of Agricultural Engineering, 1950.

MLA (8e ed.) Bronvermelding

Não informado. Agricultural and Horticultural Engineering Abstracts. National Institute of Agricultural Engineering, 1950.

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