APA Style

Johnston, Mark W., Greg W. Marshall. (2008). Relationship Selling (2). New York: McGraw Hill.

Chicago Style

Johnston, Mark W., Greg W. Marshall. Relationship Selling. 2 New York: McGraw Hill, 2008. Buku.

MLA Style

Johnston, Mark W., Greg W. Marshall. Relationship Selling. 2 New York: McGraw Hill, 2008. Buku.

Turabian Style

Johnston, Mark W., Greg W. Marshall. Relationship Selling. 2 New York: McGraw Hill, 2008. Buku.