APA (7th ed.) Citation

Fry, R. W. (1999). The great big book of personal productivity. Career Press.

Chicago Style (17th ed.) Citation

Fry, Ronald W. The Great Big Book of Personal Productivity. Franklin Lakes, NJ: Career Press, 1999.

MLA (9th ed.) Citation

Fry, Ronald W. The Great Big Book of Personal Productivity. Career Press, 1999.