APA Style

Kretztmann, N. et al.. (1970). Approaches to Natural Language . Cornell: University Cornell.

Chicago Style

Kretztmann, N. et al.. Approaches to Natural Language. Cornell: University Cornell, 1970. Text.

MLA Style

Kretztmann, N. et al.. Approaches to Natural Language. Cornell: University Cornell, 1970. Text.

Turabian Style

Kretztmann, N. et al.. Approaches to Natural Language. Cornell: University Cornell, 1970. Print.