O'Hara, V. (1990). The fitness option: Five weeks to healing stress (2nd ed.). Dawn.
Chicagoスタイル(17版)引用形式O'Hara, Valerie. The Fitness Option: Five Weeks to Healing Stress. 2nd ed. Nevada City, CA: Dawn, 1990.
MLA(9版)引用形式O'Hara, Valerie. The Fitness Option: Five Weeks to Healing Stress. 2nd ed. Dawn, 1990.
警告: この引用は必ずしも正確ではありません.