APA (7th ed.) Citation

Agar, H. (1953). Abraham Lincoln (2nd imp.). Collins.

Chicago Style (17th ed.) Citation

Agar, Herbert. Abraham Lincoln. 2nd imp. London: Collins, 1953.

MLA (9th ed.) Citation

Agar, Herbert. Abraham Lincoln. 2nd imp. Collins, 1953.

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