APA (7th ed.) Citation

Etchemendy, J. (1990). The concept of logical consequence. Harvard University Press.

Chicago Style (17th ed.) Citation

Etchemendy, John. The Concept of Logical Consequence. Cambridge [Mass.] [etc.]: Harvard University Press, 1990.

MLA (9th ed.) Citation

Etchemendy, John. The Concept of Logical Consequence. Harvard University Press, 1990.