APA

Etchemendy J., . (1990). The concept of logical consequence. Cambridge, Mass. [u.a.]: Harvard University Press.

Chicago

Etchemendy John, . 1990. The concept of logical consequence. Cambridge, Mass. [u.a.]: Harvard University Press.

Harvard

Etchemendy J., . (1990). The concept of logical consequence. Cambridge, Mass. [u.a.]: Harvard University Press.

MLA

Etchemendy John, . The concept of logical consequence. Cambridge, Mass. [u.a.]: Harvard University Press. 1990.