Παραπομπή APA

Feirer, J. L. (1974). General metal works. Mc Graw - Hill.

Παραπομπή Chicago Style

Feirer, John Louis. General Metal Works. New York: Mc Graw - Hill, 1974.

Παραπομπή MLA

Feirer, John Louis. General Metal Works. Mc Graw - Hill, 1974.