Gaya APA

Sawrey, J, M., Telford, C, W. (). Educational psychology . [s.l]:: [s.l]: [s.n]; [s.a].

Gaya MLA

Sawrey, James, M.., Telford, Charles, W.. "Educational psychology". [s.l]:: [s.l]: [s.n]; [s.a], . Text.