APA (7e ed.) Bronvermelding

Não informado. (1992). Zeiss information with Jena review. Jenoptik Carl Zeiss Jena GmbH.

Chicago (17e ed.) Bronvermelding

Não informado. Zeiss Information with Jena Review. Oberkochen, Alemanha: Jenoptik Carl Zeiss Jena GmbH, 1992.

MLA (8e ed.) Bronvermelding

Não informado. Zeiss Information with Jena Review. Jenoptik Carl Zeiss Jena GmbH, 1992.

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