Gaya APA

Tregidgo, P, S., Lohkamp, M. (1975). Oxford Graded Readers [Senior Level]: the Story of Trains (Cet. 1.--). London: Oxford University Press.

Gaya MLA

Tregidgo, P., S.., Lohkamp, Magnus. "Oxford Graded Readers [Senior Level]: the Story of Trains". Cet. 1.-- London: Oxford University Press, 1975. Text.