Penggayaan APA

RIDLEY, John. (2006). Safety with machinery . New York: BH.

Chicago Style

RIDLEY, John. Safety with machinery. New York: BH, 2006. Buku.

MLA Style

RIDLEY, John. Safety with machinery. New York: BH, 2006. Buku.

Turabian Style

RIDLEY, John. Safety with machinery. New York: BH, 2006. Buku.