APA (7e ed.) Bronvermelding

Helping Hands and Hearts Foundation & Gary A. Yupangco Foundation. (2009). Stress free life. Sound Publishing Corporation.

Chicago (17e ed.) Bronvermelding

Helping Hands and Hearts Foundation en Gary A. Yupangco Foundation. Stress Free Life. Makati City: Sound Publishing Corporation, 2009.

MLA (9e ed.) Bronvermelding

Helping Hands and Hearts Foundation en Gary A. Yupangco Foundation. Stress Free Life. Sound Publishing Corporation, 2009.