Gaya APA

Ensley, D, E., Crawley, J, W. (2006). Discrete Mathematics (First Edition). United States of America: John Wiley & Sons,Inc..

Gaya MLA

Ensley, Douglas, E.., Crawley, J., Winston. "Discrete Mathematics". First Edition United States of America: John Wiley & Sons,Inc., 2006. eBook.