APA-viite (7. p.)

KERZNER HAROLD. (2005). USING THE PROJECT MANAGEMENT MATURITY MODEL (2ND.). JOHN WILEY & SONS.

Chicago-viite (17. p.)

KERZNER HAROLD. USING THE PROJECT MANAGEMENT MATURITY MODEL. 2ND. CANADA: JOHN WILEY & SONS, 2005.

MLA-viite (9. p.)

KERZNER HAROLD. USING THE PROJECT MANAGEMENT MATURITY MODEL. 2ND. JOHN WILEY & SONS, 2005.