I grow mandarins and other citruses in plastic pots in the north bay of San Francisco Bay area. Been doing it since early '90's. I purchased my citruses from local nurseries, in particular, the Four Winds Growers of Fremont, California. Here's the link: http://fourwindsgrowers.com/solver/varietyinfo.html
From the listed varieties, I have:
Oranges...Washington Navel, Valencia Moro (blood) & Sanquinelli (blood).
Mandarins/Tangerines...Dancy and Satsuma
Lemons...Eureka and Improved Meyers
Plus...Minneola Tangelo and Calamondin
These, plus other citruses purchased from other nurseries, grow well in my neck of the wood with no problem with frost.
Here's the link to Monrovia for other citrus variety. Monrovia .