(美)斯潘塞(Scott Spencer)著 (美)谭雅·斯宾塞(Tanya Spencer)著 (法)若娜·斯彭塞(Joanna Spencer)著 (英)赫伯特·斯宾塞(Herbert Spencer)著 (美)斯科特·斯奈德(Scott Snyder)著 (美)斯纳德(Jon C.Snader)著
