APA Style

Buchan, John. (2008). The Thirty-Nine Steps : Level 4 . : Compass Publishing.

Chicago Style

Buchan, John. The Thirty-Nine Steps : Level 4. : Compass Publishing, 2008. .

MLA Style

Buchan, John. The Thirty-Nine Steps : Level 4. : Compass Publishing, 2008. .

Turabian Style

Buchan, John. The Thirty-Nine Steps : Level 4. : Compass Publishing, 2008. .