APA (7 ম সংস্করণ) উদ্ধৃতি

Kriegel Robert. (1991). If it Ain't Broke-- Break it!: And other unconventional wisdom for a changing business world. Warner Books a time warner company.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Kriegel Robert. If It Ain't Broke-- Break It!: And Other Unconventional Wisdom for a Changing Business World. USA: Warner Books a time warner company, 1991.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Kriegel Robert. If It Ain't Broke-- Break It!: And Other Unconventional Wisdom for a Changing Business World. Warner Books a time warner company, 1991.