Penggayaan APA

Boak, George. (1998). Learning Contracts . London: Great Britain.

Chicago Style

Boak, George. Learning Contracts. London: Great Britain, 1998. Buku.

MLA Style

Boak, George. Learning Contracts. London: Great Britain, 1998. Buku.

Turabian Style

Boak, George. Learning Contracts. London: Great Britain, 1998. Buku.