APA (7th ed.) Citation

HELLER. (1998). ESSENTIAL managers: Communicate clearly. Dorling Kindersley.

Chicago Style (17th ed.) Citation

HELLER. ESSENTIAL Managers: Communicate Clearly. London: Dorling Kindersley, 1998.

MLA (9th ed.) Citation

HELLER. ESSENTIAL Managers: Communicate Clearly. Dorling Kindersley, 1998.

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