Gaya APA

et.al, J, T. (2016). Scientist the terrific truths a bout twins (Science Spy) (Ed. 97). Singapore: Marshall Cavendish Education.

Gaya MLA

et.al, Joy, Tan,. "Scientist the terrific truths a bout twins (Science Spy)". Ed. 97 Singapore: Marshall Cavendish Education, 2016. Text.