Παραπομπή APA

Summers, G. J. (1968). New puzzles in logical deduction. Dover publication.

Παραπομπή Chicago Style

Summers, G. J. New Puzzles in Logical Deduction. New York: Dover publication, 1968.

Παραπομπή MLA

Summers, G. J. New Puzzles in Logical Deduction. Dover publication, 1968.