Gaya APA

Hewitt, P, G. (1993). Conceptual physics / Paul G. Hewitt (writer and illustrator) (Ed.ke-7). New York: Harper Collins College Publishers.

Gaya MLA

Hewitt, Paul, G.. "Conceptual physics / Paul G. Hewitt (writer and illustrator)". Ed.ke-7 New York: Harper Collins College Publishers, 1993. Textbook.