Αναφορές εγγραφής

Παραπομπή APA

Foster, R. (2007). Đi tìm hạnh phúc cuộc sống =: How we choose to be happy. Thành phố Hồ Chí Minh: Tổng hợp Thành phố Hồ Chí Minh.

Παραπομπή Chicago Style

Foster, Rick. Đi Tìm Hạnh Phúc Cuộc Sống =: How We Choose to Be Happy. Thành phố Hồ Chí Minh: Tổng hợp Thành phố Hồ Chí Minh, 2007.

Παραπομπή MLA

Foster, Rick. Đi Tìm Hạnh Phúc Cuộc Sống =: How We Choose to Be Happy. Thành phố Hồ Chí Minh: Tổng hợp Thành phố Hồ Chí Minh, 2007.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.