APA (7e ed.) Bronvermelding

Não informado. (1971). International Laboratory. International Scientific Communications.

Chicago (17e ed.) Bronvermelding

Não informado. International Laboratory. Greens Farms, Conn: International Scientific Communications, 1971.

MLA (8e ed.) Bronvermelding

Não informado. International Laboratory. International Scientific Communications, 1971.

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