APA (7th ed.) Citation

Schuller, R. H. (1983). Tough times never last, but tough people do! Bantam Books.

Chicago Style (17th ed.) Citation

Schuller, Robert Harold. Tough Times Never Last, but Tough People Do! Toronto: Bantam Books, 1983.

MLA (9th ed.) Citation

Schuller, Robert Harold. Tough Times Never Last, but Tough People Do! Bantam Books, 1983.

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