Hi Michael367,
Welcome to the wonderful world of identifying Canadian booklets. I find these great fun to collect but sometimes challenging to identify and always a pain to display. The most recognised reference for identifying Canadian booklets is the "Standard Catalogue of Canadian Booklet Stamps" by Bill McCann. I believe that the last (3rd) edition is from 1996 but it is still very useful unless you need information on modern booklets issued since then. Be careful though because the letters used in the booklet numbering system to identify specific varieties by McCann do not always work the same way as those in Unitrade. Check out
ebay and
Amazon to find a cheap copy.
Regarding BK33, your Unitrade catalogue should state somewhere that "Rates refer to last line on the rate page". Look backwards to the section header for the "War Issue" and it should explain the rates and cover types.
These are spelled out a bit better in the McCann catalogue. In the case of the War Issue series, you should refer to the page in the booklet that shows rates and where the last line provides US air rates of either "6c", "7c & 6c" or "7c & 5c".
I do not know the specifics of the slogan on BK62, but it is safe to assume that only one is used unless the others are mentioned in the catalogue. Be careful though to look back at the headers and information for each section where they sometimes state information that is common to an entire series of booklets but not mentioned again for the individual listings.
Good luck.