APA
(1977). Mining techniques - Pantograph. New York: H.S. Stuttman Co., Inc.
Chicago
1977. Mining techniques - Pantograph. New York: H.S. Stuttman Co., Inc.
Harvard
(1977). Mining techniques - Pantograph. New York: H.S. Stuttman Co., Inc.
MLA
Mining techniques - Pantograph. New York: H.S. Stuttman Co., Inc. 1977.
