MLA

Karttunen, Frances E, and James Lockhart. Nahuatl In the Middle Years : Language Contact Phenomena In Texts of the Colonial Period. Berkeley (Calif.): University of California press, 1976.

APA

Karttunen, F. E, & Lockhart, J. (1976). Nahuatl in the middle years : language contact phenomena in texts of the colonial period. Berkeley (Calif.): University of California press.

Chicago

Karttunen, Frances E., and James Lockhart. Nahuatl In the Middle Years: Language Contact Phenomena In Texts of the Colonial Period. Berkeley (Calif.): University of California press, 1976.