APA
Packham D. (., . (1971). Aspects of educational technology. Pitman Publishing, London: .
Chicago
Packham Deepak (ed), . 1971. Aspects of educational technology. Pitman Publishing, London: .
Harvard
Packham D. (., . (1971). Aspects of educational technology. Pitman Publishing, London: .
MLA
Packham Deepak (ed), . Aspects of educational technology. Pitman Publishing, London: . 1971.