APA (7th ed.) Citation

Emmet, E. R. (1967). 101 brain puzzlers / by E.R. Emmet. Macmillan.

Chicago Style (17th ed.) Citation

Emmet, E. R. 101 Brain Puzzlers / by E.R. Emmet. Macmillan, 1967.

MLA (9th ed.) Citation

Emmet, E. R. 101 Brain Puzzlers / by E.R. Emmet. Macmillan, 1967.

Warning: These citations may not always be 100% accurate.