APA

Graham J., . (2006). Letters from a self-made merchant to his son. Estados Unidos: Grosset & Dunlap Publishers.

Chicago

Graham John, . 2006. Letters from a self-made merchant to his son. Estados Unidos: Grosset & Dunlap Publishers.

Harvard

Graham J., . (2006). Letters from a self-made merchant to his son. Estados Unidos: Grosset & Dunlap Publishers.

MLA

Graham John, . Letters from a self-made merchant to his son. Estados Unidos: Grosset & Dunlap Publishers. 2006.