APA (7th ed.) Citation

Ringer. (1990). The 10 habits of highly successful people. Advantage Quest.

Chicago Style (17th ed.) Citation

Ringer. The 10 Habits of Highly Successful People. Petaling Jaya: Advantage Quest, 1990.

MLA (8th ed.) Citation

Ringer. The 10 Habits of Highly Successful People. Advantage Quest, 1990.

Warning: These citations may not always be 100% accurate.