Cita APA (7a ed.)

GRONROOS CHRISTIAN. (1990). SERVICE MANAGEMENT AND MARKETING. LEXINGTON BOOKS.

Cita Chicago Style (17a ed.)

GRONROOS CHRISTIAN. SERVICE MANAGEMENT AND MARKETING. MASSACHUSETTS: LEXINGTON BOOKS, 1990.

Cita MLA (9a ed.)

GRONROOS CHRISTIAN. SERVICE MANAGEMENT AND MARKETING. LEXINGTON BOOKS, 1990.