APA
Shanks I. P., . (1963). Simple science and nature study. Nairobi: Oxford.
Chicago
Shanks I P, . 1963. Simple science and nature study. Nairobi: Oxford.
Harvard
Shanks I. P., . (1963). Simple science and nature study. Nairobi: Oxford.
MLA
Shanks I P, . Simple science and nature study. Nairobi: Oxford. 1963.