Gaya APA

Swanson, C, P., Sellers, G, R. (NULL). Student guide to accompany understanding college algebra . Columbus:: Columbus: A Bell & Howell; 1979..

Gaya MLA

Swanson, Carl, P.., Sellers, Gene, R.. "Student guide to accompany understanding college algebra". Columbus:: Columbus: A Bell & Howell; 1979., NULL. Text.