APA引文

Snelgrove, D. A. K. (1960). Opportunities in geology and geological engineering. Vocational Guidance Manuals.

Chicago Style (17th ed.) Citation

Snelgrove, Dr. Alfred Kitchener. Opportunities in Geology and Geological Engineering. New York: Vocational Guidance Manuals, 1960.

MLA引文

Snelgrove, Dr. Alfred Kitchener. Opportunities in Geology and Geological Engineering. Vocational Guidance Manuals, 1960.