APA

Zuloaga G., . (1933). The geology of the iron deposits of the Sierra de Imataca, Venezuela. New York: American Institute of Mining and Metallurgical Engineers, Inc.

Chicago

Zuloaga Guillermo, . 1933. The geology of the iron deposits of the Sierra de Imataca, Venezuela. New York: American Institute of Mining and Metallurgical Engineers, Inc.

Harvard

Zuloaga G., . (1933). The geology of the iron deposits of the Sierra de Imataca, Venezuela. New York: American Institute of Mining and Metallurgical Engineers, Inc.

MLA

Zuloaga Guillermo, . The geology of the iron deposits of the Sierra de Imataca, Venezuela. New York: American Institute of Mining and Metallurgical Engineers, Inc. 1933.