APA (7th ed.) Citation

(2007). Definition of "positional isomer" as it pertains to the control of schedule I controlled substances. Final rule. Federal register, 72(231), 67850.

Chicago Style (17th ed.) Citation

"Definition of "Positional Isomer" as It Pertains to the Control of Schedule I Controlled Substances. Final Rule." Federal Register 72, no. 231 (2007): 67850.

MLA (9th ed.) Citation

"Definition of "Positional Isomer" as It Pertains to the Control of Schedule I Controlled Substances. Final Rule." Federal Register, vol. 72, no. 231, 2007, p. 67850.

Warning: These citations may not always be 100% accurate.