Chemical Marketing Reporter. (1986). OPD chemical buyers directory (73a. ed.). Schnell.
Chicago-čujuhus (17. p.)Chemical Marketing Reporter. OPD Chemical Buyers Directory. 73a. ed. Nueva York: Schnell, 1986.
MLA-čujuhus (9. p.)Chemical Marketing Reporter. OPD Chemical Buyers Directory. 73a. ed. Schnell, 1986.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.