2016 Census Dictionary Contains definitions, e.g., Aboriginal identity, Housing suitability, ...
More detailed reference guides here [LINK] via Odesi
Just the basics
download files :
Alain El Hofi and Susan Mowers. (2017). Data Citation - APA style. Ottawa: University of Ottawa
Obtain hundreds of data files, e.g, Census or GSS PUMF files, through Odesi or your DLI (Data Liberation Initiative) contact at your Library. For more access and contact information see: Data