APA

Smullyan R. M., . (1995). Firts-order logic. New York: Dover.

Chicago

Smullyan Raymond M, . 1995. Firts-order logic. New York: Dover.

Harvard

Smullyan R. M., . (1995). Firts-order logic. New York: Dover.

MLA

Smullyan Raymond M, . Firts-order logic. New York: Dover. 1995.