OPEC IS NOT A CARTEL.

MLA

Plaut, Steven E. “Opec Is Not a Cartel.” Challenge (05775132), vol. 24, no. 5, Nov. 1981, p. 18. EBSCOhost, https://doi.org/10.1080/05775132.1981.11470722.

APA

Plaut, S. E. (1981). Opec Is Not a Cartel. Challenge (05775132), 24(5), 18. https://doi.org/10.1080/05775132.1981.11470722

Chicago

Plaut, Steven E. 1981. “Opec Is Not a Cartel.” Challenge (05775132) 24 (5): 18. doi:10.1080/05775132.1981.11470722.