Gaya APA

Bittel, L, R. (1980). What every supervisory should know : the basics of supervisory management (4th ed.). New York: McGraw-Hill.

Gaya MLA

Bittel, Lester, R.. "What every supervisory should know : the basics of supervisory management". 4th ed. New York: McGraw-Hill, 1980. Buku/Printed Material.