एपीए उद्धरण

Thorstensen, T. C. (1969). Practical leather technology. Van Nostrand.

शिकागो स्टाइल उद्धरण

Thorstensen, Thomas C. Practical Leather Technology. Van Nostrand, 1969.

एमएलए उद्धरण

Thorstensen, Thomas C. Practical Leather Technology. Van Nostrand, 1969.