North American Product Classification System (NAPCS) Canada [Provisional Version 0.1]
- 511 - Print publishing products
- 511012 - Periodicals, print
- 511012.5 - Periodicals, business (including farming), professional and academic, printed
- 511012.5.1 - Periodicals, business (including farming) and professional, printed
- 511012.5.2 - Periodicals, academic, printed
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