Cita APA (7a ed.)

Peirce, C. S., Welby, V., Hardwick, C. S., & Cook, J. E. (1977). Semiotic and significs: The correspondence between Charles S. Peirce and Victoria Lady Welby. Indiana University Press.

Cita Chicago Style (17a ed.)

Peirce, Charles S., Victoria Welby, Charles S. Hardwick, y James Edward Cook. Semiotic and Significs: The Correspondence Between Charles S. Peirce and Victoria Lady Welby. Bloomington [etc.]: Indiana University Press, 1977.

Cita MLA (9a ed.)

Peirce, Charles S., et al. Semiotic and Significs: The Correspondence Between Charles S. Peirce and Victoria Lady Welby. Indiana University Press, 1977.