APA Citation

MacDonald, G. A. 1., & MacDonald, G. A. 1. (1972). Volcanoes. Englewood Cliffs, N.J.: Prentice Hall.

Chicago Style Citation

MacDonald, Gordon Andrew 1911-, and Gordon Andrew 1911- MacDonald. Volcanoes. Englewood Cliffs, N.J.: Prentice Hall, 1972.

MLA Citation

MacDonald, Gordon Andrew 1911-, and Gordon Andrew 1911- MacDonald. Volcanoes. Englewood Cliffs, N.J.: Prentice Hall, 1972.

Warning: These citations may not always be 100% accurate.