Citazione Stile APA (7a Edizione)

CRISP MICHAEL. (1992). TWELVE STEPS TO SELF IMPROVEMENT. GALGOTIA PUBLICATIONS.

Citazione stile Chigago Style (17a edizione)

CRISP MICHAEL. TWELVE STEPS TO SELF IMPROVEMENT. NEW DELHI: GALGOTIA PUBLICATIONS, 1992.

Citatione MLA (9a ed.)

CRISP MICHAEL. TWELVE STEPS TO SELF IMPROVEMENT. GALGOTIA PUBLICATIONS, 1992.