Citazione Stile APA (7a Edizione)

Heller, R. (2008). Achieving excellence; Influencing people; Balancing work and life. Dorling Kindersley.

Citazione stile Chigago Style (17a edizione)

Heller, Robert. Achieving Excellence; Influencing People; Balancing Work and Life. London: Dorling Kindersley, 2008.

Citatione MLA (9a ed.)

Heller, Robert. Achieving Excellence; Influencing People; Balancing Work and Life. Dorling Kindersley, 2008.