APA (7th ed.) Citation

Kannapell, B. M., & Others, A. (1969). Signs for Instructional Purposes.

Chicago Style (17th ed.) Citation

Kannapell, Barbara M., and And Others. Signs for Instructional Purposes. 1969.

MLA (9th ed.) Citation

Kannapell, Barbara M., and And Others. Signs for Instructional Purposes. 1969.

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