APA (7th ed.) Citation

Heller Robert. (2000). Peter Drucker. Dorling Kindersley.

Chicago Style (17th ed.) Citation

Heller Robert. Peter Drucker. Delhi: Dorling Kindersley, 2000.

MLA (9th ed.) Citation

Heller Robert. Peter Drucker. Dorling Kindersley, 2000.

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