O'Hara, V. (1990). The fitness option: Five weeks to healing stress (2nd ed.). Dawn.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रO'Hara, Valerie. The Fitness Option: Five Weeks to Healing Stress. 2nd ed. Nevada City, CA: Dawn, 1990.
एमएलए (9वां संस्करण) प्रशस्ति पत्रO'Hara, Valerie. The Fitness Option: Five Weeks to Healing Stress. 2nd ed. Dawn, 1990.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.