Gaya APA

William, R., Swanson, C, P. (1984). Basic mathematics arithmetic and algebra . Illinois: Illinois: Scot, Foretman and Company; 1984.

Gaya MLA

William, Richard., Swanson, Carl, P.. "Basic mathematics arithmetic and algebra". Illinois: Illinois: Scot, Foretman and Company; 1984, 1984. Text.