Bí quyêt ðòi sông hoat ðông
By: ban dich cua Văn Lang.
Series: Loai sách "Hoc Làm Nguòi"
Publisher: Khai-Trí
Published: 1965
Place of publication: Saigon
Language: vie
Work titles: Les secrets de la vie active.
Notes: Translation of: Les secrets de la vie active.