Charles, F., G., T., R.(1994).Political ideologies : left, center, right / Charles Funderburk, Robert G. Thobaben (Ed.ke-3).New York:Harper Collins College Publishers.
Gaya MLA
Funderburk, Charles., Thobaben, Robert, G.."Political ideologies : left, center, right / Charles Funderburk, Robert G. Thobaben".Ed.ke-3New York:Harper Collins College Publishers,1994.Textbook.