Gaya APA

Gallagher, F., Jacobs, R, F. (1974). Disovering algebra 1: skill practice book (1974). : USA : Harcourt Brace Jovanovich, Inc,.

Gaya MLA

Gallagher, Fran., Jacobs, Russellm, F. "Disovering algebra 1: skill practice book". 1974 : USA : Harcourt Brace Jovanovich, Inc,, 1974. Text.