Smith, G. O., & Willis, B. (1903). Contributions to the geology of Washington: Geology and physiography of central Washington. Govt. print. off..
Цитирование в стиле Чикаго (17-е изд.)Smith, George Otis, и Bailey Willis. Contributions to the Geology of Washington: Geology and Physiography of Central Washington. Washington: Govt. print. off., 1903.
Цитирование MLA (8-е изд.)Smith, George Otis, и Bailey Willis. Contributions to the Geology of Washington: Geology and Physiography of Central Washington. Govt. print. off., 1903.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.