APA (7th ed.) Citation

Gregory, C. E. (1979). Explosives for North American engineers (2nd ed.). Trans Tech Publications.

Chicago Style (17th ed.) Citation

Gregory, Cedric E. Explosives for North American Engineers. 2nd ed. Clausthal, Germany ; Rockport, Md.: Trans Tech Publications, 1979.

MLA (8th ed.) Citation

Gregory, Cedric E. Explosives for North American Engineers. 2nd ed. Trans Tech Publications, 1979.