Electro-Acoustic Music: Canadians Help

I just heard an excellent piece on CBC radio that uses cricket and other natural sounds to create a little "symphonette" of sorts. It would be great listening on a decent rig, and I would love to get hold of it but it is no longer in print. The piece was "Cricket Voice" by Hildegard Westercamp, and it was on Anthology of Canadian Musis - Electro-Acoustic Music". It was put out on the label Electro-Acoustic Music with a ID number of ACM37.

Can anybody help me find this or obtain a copy? Canadians - would be forever in your debt!!!