APA استشهاد

Thompson, A. A. (1973). Economics of the firn: Theory and practice. Prentice-Hall.

استشهاد بنمط شيكاغو

Thompson, Arthur A. Economics of the Firn: Theory and Practice. Englewood: Prentice-Hall, 1973.

MLA استشهاد

Thompson, Arthur A. Economics of the Firn: Theory and Practice. Prentice-Hall, 1973.