APA (7e ed.) Bronvermelding

Não informado. (2007). Report of the Penrose Research Laboratory. Zoological Society of Philadelphia.

Chicago (17e ed.) Bronvermelding

Não informado. Report of the Penrose Research Laboratory. Philadelphia, Pa: Zoological Society of Philadelphia, 2007.

MLA (8e ed.) Bronvermelding

Não informado. Report of the Penrose Research Laboratory. Zoological Society of Philadelphia, 2007.

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