Johnson, R. W. (1970). Ulawun volcano, New Britain: Geology, petrology, and eruptive history between 1915 to 1967. Bureau of Mineral Resources, Geology and Geophysics.
Цитирование в стиле Чикаго (17-е изд.)Johnson, R. W. Ulawun Volcano, New Britain: Geology, Petrology, and Eruptive History Between 1915 to 1967. [Canberra]: Bureau of Mineral Resources, Geology and Geophysics, 1970.
Цитирование MLA (9-е изд.)Johnson, R. W. Ulawun Volcano, New Britain: Geology, Petrology, and Eruptive History Between 1915 to 1967. Bureau of Mineral Resources, Geology and Geophysics, 1970.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.