APA
Gustafson R. D., Frisk P. D. j. a., . (1995). Beginning algebra. New York: Cole Publishing Company.
Chicago
Gustafson Roy David, Frisk Peter D jt author, . 1995. Beginning algebra. New York: Cole Publishing Company.
Harvard
Gustafson R. D., Frisk P. D. j. a., . (1995). Beginning algebra. New York: Cole Publishing Company.
MLA
Gustafson Roy David, Frisk Peter D jt author, . Beginning algebra. New York: Cole Publishing Company. 1995.