Gaya APA
Torrance, J. et al (1999).
New higher biology : with answer / James Torrance ... [et.al.] (Cet.1).
London:
Hodder n Stoughton.
Gaya MLA
Torrance, James. et al.
"New higher biology : with answer / James Torrance ... [et.al.]".
Cet.1
London:
Hodder n Stoughton,
1999.
Textbook.