Dyfyniad APA

Buchan, J., & John Buchan. (1995). The thirty - nine steps. Oxford: Oxford University Press.

Dyfyniad Arddull Chicago

Buchan, John, và John Buchan. The Thirty - Nine Steps. Oxford: Oxford University Press, 1995.

Dyfyniad MLA

Buchan, John, và John Buchan. The Thirty - Nine Steps. Oxford: Oxford University Press, 1995.

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