Gaya APA

Riklan, D. (1976). Self Improvement : The Top 101 Experts That Help Us Improve our Lives . United States Of America: Self Improvment Online, INC..

Gaya MLA

Riklan, David. "Self Improvement : The Top 101 Experts That Help Us Improve our Lives". United States Of America: Self Improvment Online, INC., 1976. Text.