APA

Christian G. D., . (1994). Analytica chemistry. New York: John wiley & sons.

Chicago

Christian Gray D, . 1994. Analytica chemistry. New York: John wiley & sons.

Harvard

Christian G. D., . (1994). Analytica chemistry. New York: John wiley & sons.

MLA

Christian Gray D, . Analytica chemistry. New York: John wiley & sons. 1994.