APA引文

GRUHN, W. T., & DOUGLAS, H. R. (1971). The modern junior high school.-- Ed. 3. John Wiley and Sons.

Chicago Style (17th ed.) Citation

GRUHN, 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.