APA (7e ed.) Bronvermelding

Não informado. (1986). Washington Park Arboretum bulletin. University of Washington, Arboretum Foundation.

Chicago (17e ed.) Bronvermelding

Não informado. Washington Park Arboretum Bulletin. Seattle, Wash: University of Washington, Arboretum Foundation, 1986.

MLA (8e ed.) Bronvermelding

Não informado. Washington Park Arboretum Bulletin. University of Washington, Arboretum Foundation, 1986.

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