APA Style

HART, ARCHIBALD.. (1988). 15 PRINCIPLES FOR ACHIEVING HAPPINESS (CET.1.). DALLAS: WORD PUBLISHING.

Chicago Style

HART, ARCHIBALD.. 15 PRINCIPLES FOR ACHIEVING HAPPINESS. CET.1. DALLAS: WORD PUBLISHING, 1988. Text.

MLA Style

HART, ARCHIBALD.. 15 PRINCIPLES FOR ACHIEVING HAPPINESS. CET.1. DALLAS: WORD PUBLISHING, 1988. Text.

Turabian Style

HART, ARCHIBALD.. 15 PRINCIPLES FOR ACHIEVING HAPPINESS. CET.1. DALLAS: WORD PUBLISHING, 1988. Print.