APA (7th ed.) Citation

Wilbur, R. B. (1979). American sign language and sign systems. Univ. Park Pr.

Chicago Style (17th ed.) Citation

Wilbur, Ronnie B. American Sign Language and Sign Systems. Baltimore: Univ. Park Pr, 1979.

MLA (9th ed.) Citation

Wilbur, Ronnie B. American Sign Language and Sign Systems. Univ. Park Pr, 1979.

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