APA
Thorpe M. (. &. G. D. (., . (1987). Open Learning for Adults. Longman Group, UK: .
Chicago
Thorpe Mary (ed) & Grugeon David (ed), . 1987. Open Learning for Adults. Longman Group, UK: .
Harvard
Thorpe M. (. &. G. D. (., . (1987). Open Learning for Adults. Longman Group, UK: .
MLA
Thorpe Mary (ed) & Grugeon David (ed), . Open Learning for Adults. Longman Group, UK: . 1987.