. . . . "エネルギー使用法" . . "Využijte svých sil praktická metoda jak zužitkovat co nejlépe lidskou energii" . . . "More power to you! A working technique for making the most of human energy"@en . . "More power to you! A working technique for making the most of human energy" . "More Power to You"@en . "Enerugī shiyōhō" . "Enerugī shiyōhō"@ja . . "Working technique for making the most of human energy"@en . "Využijte svých sil : Praktická metoda jak zužitkovat co nejlépe lidskou energii" . . . . . . . . . . "More power to you! : a working technique for making the most of human energy" . . . . . . "More power to you! A working technique for making the most of human energy. (Second printing.)" . "Hygiène." . . "Santé" . .