Citing the "1906 Canadian Census ..." from Ancestry

Dear Editor;

I've been trying to apply what I've learned from the citing of passenger records to citing the Canadian census records from Ancestry. Your "QuickLesson 26: Thinking Through Ancestry.com Citations" has also been quite a help.

I've produced the following citation and would appreciate some feedback to ensure I'm on-track before proceeding with additional census citations.

SOURCE & REFERENCE

Master Source Name (internal name used by database program)
1906-07-17 Census – Canada, SK, Assiniboia East, SD 22 – MURISON, Thomas Baird

Source List Entry
"1906 Canada Census of Manitoba, Saskatchewan, and Alberta." Database with browsable images. Ancestry. https://www.ancestry.ca/search/collections/1906canada/ : 2019.

First Reference
"1906 Canada Census of Manitoba, Saskatchewan, and Alberta,” database with browsable images, Ancestry (https://www.ancestry.ca/search/collections/1906canada/ : downloaded 26 April 2019) > Saskatchewan [province] > Assiniboia East [district] > Sub-District 22 [sub-district] > image 10, p. 19, family 135, line 11, entry for Thomas B. “Murrison” [Murison]; citing Library and Archives Canada, Statistics Canada Fonds, ser. RG31-C-1, microfilm reels T-18353 to T-18363. The Library and Archives Canada site identifies the specific microfilm reel for this record as being T-18358.

Subsequent Note
"1906 Canada Census of Manitoba, Saskatchewan, and Alberta," Ancestry, Saskatchewan, Assiniboia East, Sub-District 22, image 10, p. 19, family 135, line 11, entry for Thomas B. “Murrison” [Murison].

Do the URLS require the final "/"? It does not affect their validity.

Is it permissible to use the ISO 3166-2 abbreviations for countries and provinces/states in a citation? For instance; Canada is "CA" and Saskatchewan is "SK". That would reduce the length of some references by a fair amount