APA (7th ed.) Citation

Greenlee, D. (1964). The sign theory of C. S. Peirce.

Chicago Style (17th ed.) Citation

Greenlee, Douglas. The Sign Theory of C. S. Peirce. 1964.

MLA (9th ed.) Citation

Greenlee, Douglas. The Sign Theory of C. S. Peirce. 1964.

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