Cita APA (7th ed.)

Chemical Marketing Reporter. (1986). OPD chemical buyers directory (73a. ed.). Schnell.

Cita Chicago (17th ed.)

Chemical Marketing Reporter. OPD Chemical Buyers Directory. 73a. ed. Nueva York: Schnell, 1986.

Cita MLA (9th ed.)

Chemical Marketing Reporter. OPD Chemical Buyers Directory. 73a. ed. Schnell, 1986.