APA
(1977). Typewriter - Weighing machines. New York: H.S. Stuttman Co., Inc.
Chicago
1977. Typewriter - Weighing machines. New York: H.S. Stuttman Co., Inc.
Harvard
(1977). Typewriter - Weighing machines. New York: H.S. Stuttman Co., Inc.
MLA
Typewriter - Weighing machines. New York: H.S. Stuttman Co., Inc. 1977.
