APA (7e ed.) Bronvermelding

Não informado. (1976). Illinois Natural History Survey Special Publications. Department of Energy and Natural Resources, Natural History Division.

Chicago (17e ed.) Bronvermelding

Não informado. Illinois Natural History Survey Special Publications. Champaign, Ill: Department of Energy and Natural Resources, Natural History Division, 1976.

MLA (8e ed.) Bronvermelding

Não informado. Illinois Natural History Survey Special Publications. Department of Energy and Natural Resources, Natural History Division, 1976.

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