Gaya APA

Pierce, C., Nelson, I, S, R. (1971). General chemistry workbook how to solve chemIstry problems . San Fransisco: San Fransisco: W.H. Freeman and company; 1971.

Gaya MLA

Pierce, Conway., Nelson, I., Smith,, R.. "General chemistry workbook how to solve chemIstry problems". San Fransisco: San Fransisco: W.H. Freeman and company; 1971, 1971. Text.