Gaya APA

Romer, A, S., Parsons, T, S. (1986). Vertebratee body . Philadelphia: Philadelphia: Saunders College Publishing; 1986.

Gaya MLA

Romer, Alfed, Sherwood., Parsons, Thomas, S.. "Vertebratee body". Philadelphia: Philadelphia: Saunders College Publishing; 1986, 1986. Text.