APA
Johnston B., Greaves J., . (1970). Manual on food and nutrition policy. Rome: Food and Agriculture Organisation of the United Nations.
Chicago
Johnston B.F, Greaves J.P, . 1970. Manual on food and nutrition policy. Rome: Food and Agriculture Organisation of the United Nations.
Harvard
Johnston B., Greaves J., . (1970). Manual on food and nutrition policy. Rome: Food and Agriculture Organisation of the United Nations.
MLA
Johnston B.F, Greaves J.P, . Manual on food and nutrition policy. Rome: Food and Agriculture Organisation of the United Nations. 1970.