APA Style
O'Neal, M. (2006).
The Merck Index an encyclopedia of chemicals, drugs, and biological (14th ed).
U.S.A:
Merck Research Laboratories.
MLA Style
O'Neal, Maryadale.
"The Merck Index an encyclopedia of chemicals, drugs, and biological".
14th ed
U.S.A:
Merck Research Laboratories,
2006.
print.