Cita APA (7th ed.)

OBEIRNE, T. (1965). Puzzles and Pradoxes. Oxford Univ. press.

Cita Chicago (17th ed.)

OBEIRNE, T.H. Puzzles and Pradoxes. London: Oxford Univ. press, 1965.

Cita MLA (9th ed.)

OBEIRNE, T.H. Puzzles and Pradoxes. Oxford Univ. press, 1965.