APA
Howe G. M., . (1977). A World geography of human diseases. London: Academic Press.
Chicago
Howe G Melvyn, . 1977. A World geography of human diseases. London: Academic Press.
Harvard
Howe G. M., . (1977). A World geography of human diseases. London: Academic Press.
MLA
Howe G Melvyn, . A World geography of human diseases. London: Academic Press. 1977.