APA Style

Merck Standards. (1972). Darmstadt: Merck.

Chicago Style

Merck Standards. . Darmstadt: Merck, 1972. Book.

MLA Style

Merck Standards. . Darmstadt: Merck, 1972. Book.

Turabian Style

Merck Standards. Darmstadt: Merck, 1972. Book.