APA-čujuhus (7. p.)

Burdick, D. L., & Leffler, W. L. (2010). Petrochemicals in nontechnical language (4th ed.). PennWell Corp..

Chicago-čujuhus (17. p.)

Burdick, Donald L., juo William L. Leffler. Petrochemicals in Nontechnical Language. 4th ed. Tulsa, OK: PennWell Corp., 2010.

MLA-čujuhus (9. p.)

Burdick, Donald L., juo William L. Leffler. Petrochemicals in Nontechnical Language. 4th ed. PennWell Corp., 2010.

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