Robbins, W. G., & Barber, K. (2011). Nature's Northwest: The North Pacific Slope in the twentieth century. University of Arizona Press.
Цитирование в стиле Чикаго (17-е изд.)Robbins, William G., и Katrine Barber. Nature's Northwest: The North Pacific Slope in the Twentieth Century. Tucson: University of Arizona Press, 2011.
Цитирование MLA (8-е изд.)Robbins, William G., и Katrine Barber. Nature's Northwest: The North Pacific Slope in the Twentieth Century. University of Arizona Press, 2011.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.