APA (7th ed.) Citation
CAMPBELL, P., & OLSEN, G. (1995). IMPROVING INSTRUCTION IN SECONDARY SCHOOLS.
Chicago Style (17th ed.) Citation
CAMPBELL, P., and G.R OLSEN. IMPROVING INSTRUCTION IN SECONDARY SCHOOLS. 1995.
MLA (9th ed.) Citation
CAMPBELL, P., and G.R OLSEN. IMPROVING INSTRUCTION IN SECONDARY SCHOOLS. 1995.
Warning: These citations may not always be 100% accurate.