APA

Downes H. R., . (1955). The chemistry of living cells. New York: Harper & Brothers.

Chicago

Downes Helen R, . 1955. The chemistry of living cells. New York: Harper & Brothers.

Harvard

Downes H. R., . (1955). The chemistry of living cells. New York: Harper & Brothers.

MLA

Downes Helen R, . The chemistry of living cells. New York: Harper & Brothers. 1955.