Cita APA (7th ed.)

BUCKNER LEORY M. (1978). CUSTOMER SERVICES. MCGRAW-HILL.

Cita Chicago (17th ed.)

BUCKNER LEORY M. CUSTOMER SERVICES. NEW YORK: MCGRAW-HILL, 1978.

Cita MLA (9th ed.)

BUCKNER LEORY M. CUSTOMER SERVICES. MCGRAW-HILL, 1978.