Sierra Club, Pyramid Productions (Firm), Spacek, S., Serrill, W., Hedreen, A., & Thompson, R. (2003). Wild America: Protecting the lands explored by Lewis & Clark. Pyramid Productions ; Sierra Club.
Цитирование в стиле Чикаго (17-е изд.)Sierra Club, Pyramid Productions (Firm), Sissy Spacek, Ward Serrill, Ann Hedreen, и Rustin Thompson. Wild America: Protecting the Lands Explored by Lewis & Clark. [S.l.]: Pyramid Productions ; Sierra Club, 2003.
Цитирование MLA (8-е изд.)Sierra Club, et al. Wild America: Protecting the Lands Explored by Lewis & Clark. Pyramid Productions ; Sierra Club, 2003.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.