APA
Harborne J. B., . (1973). Phytochemical methods. Chapman and hall, London: .
Chicago
Harborne J B, . 1973. Phytochemical methods. Chapman and hall, London: .
Harvard
Harborne J. B., . (1973). Phytochemical methods. Chapman and hall, London: .
MLA
Harborne J B, . Phytochemical methods. Chapman and hall, London: . 1973.