APA (7e ed.) Bronvermelding

Kriegel, R. J., & Patler, L. (1991). If it ain't broke-- break it!: And other unconventional wisdom for a changing business world. Warner Books.

Chicago (17e ed.) Bronvermelding

Kriegel, Robert J., en Louis Patler. If It Ain't Broke-- Break It!: And Other Unconventional Wisdom for a Changing Business World. New York: Warner Books, 1991.

MLA (9e ed.) Bronvermelding

Kriegel, Robert J., en Louis Patler. If It Ain't Broke-- Break It!: And Other Unconventional Wisdom for a Changing Business World. Warner Books, 1991.