Citazione Stile APA (7a Edizione)

(1978). Union guide to photograph collections of the Pacific Northwest. Oregon Historical Society.

Citazione stile Chigago Style (17a edizione)

Union Guide to Photograph Collections of the Pacific Northwest. Oregon Historical Society, 1978.

Citatione MLA (8a ed.)

Union Guide to Photograph Collections of the Pacific Northwest. Oregon Historical Society, 1978.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.