APA (7th ed.) Citation

Grönroos, C. (1990). Marketing redefined. [s.n.].

Chicago Style (17th ed.) Citation

Grönroos, Christian. Marketing Redefined. [S.l.]: [s.n.], 1990.

MLA (9th ed.) Citation

Grönroos, Christian. Marketing Redefined. [s.n.], 1990.

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