APA Citation

Collins, D. R. (1990). James Buchanan, 15th president of the United States. Ada, Okla.: Garrett Educational Corp..

Chicago Style Citation

Collins, David R. James Buchanan, 15th President of the United States. Ada, Okla.: Garrett Educational Corp., 1990.

MLA Citation

Collins, David R. James Buchanan, 15th President of the United States. Ada, Okla.: Garrett Educational Corp., 1990.

Warning: These citations may not always be 100% accurate.