GRUHN, W. T., & DOUGLAS, H. R. (1971). The modern junior high school.-- Ed. 3. John Wiley and Sons.
Chicago Style (17th ed.) CitationGRUHN, William T., and Harl R. DOUGLAS. The Modern Junior High School.-- Ed. 3. New York: John Wiley and Sons, 1971.
MLA引文GRUHN, William T., and Harl R. DOUGLAS. The Modern Junior High School.-- Ed. 3. John Wiley and Sons, 1971.
警告:這些引文格式不一定是100%准確.