APA
Moldovan I., Chivu G. & Popovici N. (1969). The Technology of mineral fertilizers. London: British Sulphur Corporation.
Chicago
Moldovan I, Chivu G and Popovici N. 1969. The Technology of mineral fertilizers. London: British Sulphur Corporation.
Harvard
Moldovan I., Chivu G. and Popovici N. (1969). The Technology of mineral fertilizers. London: British Sulphur Corporation.
MLA
Moldovan I, Chivu G and Popovici N. The Technology of mineral fertilizers. London: British Sulphur Corporation. 1969.