Παραπομπή APA

Barrett, J. (1981). Biochemistry of porasitic helminths. Macmillan.

Παραπομπή Chicago Style

Barrett, John. Biochemistry of Porasitic Helminths. London: Macmillan, 1981.

Παραπομπή MLA

Barrett, John. Biochemistry of Porasitic Helminths. Macmillan, 1981.