APA (7th ed.) Citation

E. Merck (Darmstadt). (1971). Merck-Standards. Merck.

Chicago Style (17th ed.) Citation

E. Merck (Darmstadt). Merck-Standards. Darmstadt: Merck, 1971.

MLA (9th ed.) Citation

E. Merck (Darmstadt). Merck-Standards. Merck, 1971.

Warning: These citations may not always be 100% accurate.