易发久. (2011). 天助自助者: God helps those who help themselves. 凤凰出版社.
Dyfyniad Arddull Chicago易发久. 天助自助者: God Helps Those Who Help Themselves. 凤凰出版社, 2011.
Dyfyniad MLA易发久. 天助自助者: God Helps Those Who Help Themselves. 凤凰出版社, 2011.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.