APA (7th ed.) Citation

Heiland, R. E., & Richardson, W. (1957). Work sampling. McGraw-Hill.

Chicago Style (17th ed.) Citation

Heiland, Robert E., and W.J Richardson. Work Sampling. McGraw-Hill, 1957.

MLA (8th ed.) Citation

Heiland, Robert E., and W.J Richardson. Work Sampling. McGraw-Hill, 1957.

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