APA ציטוט

Greene, H. (1889). Coal and the coal mines. Houghton, Mifflin and Company.

Chicago Style (17th ed.) Citation

Greene, Homer. Coal and the Coal Mines. Boston, New York: Houghton, Mifflin and Company, 1889.

ציטוט MLA

Greene, Homer. Coal and the Coal Mines. Houghton, Mifflin and Company, 1889.