APA (7th ed.) Citation

Mitchell, B., & Gamlem, C. The big book of HR (Revised and updated.).

Chicago Style (17th ed.) Citation

Mitchell, Barbara, and Cornelia Gamlem. The Big Book of HR. Revised and updated.

MLA (8th ed.) Citation

Mitchell, Barbara, and Cornelia Gamlem. The Big Book of HR. Revised and updated.

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