Gaya APA

Peter, G, M., Welch, C, L, 1. (1988). Algebra for college students / Gilbert M. Peter, C. Lee Welch . Glenview, Illinois: Scott Foresman.

Gaya MLA

Peter, Gilbert, M.., Welch, C., Lee,, 1928. "Algebra for college students / Gilbert M. Peter, C. Lee Welch". Glenview, Illinois: Scott Foresman, 1988. Textbook.