APA-čujuhus (7. p.)

HOOKS I F. (2001). CUSTOMER CENTERED PRODUCTS. AMACOM.

Chicago-čujuhus (17. p.)

HOOKS I F. CUSTOMER CENTERED PRODUCTS. NEW YORK: AMACOM, 2001.

MLA-čujuhus (9. p.)

HOOKS I F. CUSTOMER CENTERED PRODUCTS. AMACOM, 2001.

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