APA (7th ed.) Citation

Wortman, J. L. (2008). On The Affinities of Leptarctus primus of Leidy American Museum of Natural History, Vol. VI, Article VIII, pp. 229-331. Project Gutenberg.

Chicago Style (17th ed.) Citation

Wortman, Jacob Lawson. On The Affinities of Leptarctus Primus of Leidy American Museum of Natural History, Vol. VI, Article VIII, Pp. 229-331. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Wortman, Jacob Lawson. On The Affinities of Leptarctus Primus of Leidy American Museum of Natural History, Vol. VI, Article VIII, Pp. 229-331. Project Gutenberg, 2008.

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