Gaya APA

Roberto, Michael A.. (2009). Know what you don't Know . America: Pearson Education.

Gaya Chicago

Roberto, Michael A.. Know what you don't Know. America: Pearson Education, 2009. Text.

Gaya MLA

Roberto, Michael A.. Know what you don't Know. America: Pearson Education, 2009. Text.

Gaya Turabian

Roberto, Michael A.. Know what you don't Know. America: Pearson Education, 2009. Print.