CRISP MICHAEL. (1992). TWELVE STEPS TO SELF IMPROVEMENT. GALGOTIA PUBLICATIONS.
Chicago Style (17th ed.) CitationCRISP MICHAEL. TWELVE STEPS TO SELF IMPROVEMENT. NEW DELHI: GALGOTIA PUBLICATIONS, 1992.
MLA引文CRISP MICHAEL. TWELVE STEPS TO SELF IMPROVEMENT. GALGOTIA PUBLICATIONS, 1992.
警告:這些引文格式不一定是100%准確.