RCA-VPSX-6077 was recorded in Toronto at the O'Keefe Centre on a double LP, released in 1972; "Marianne" is on track 17, a medley, with six other tunes. In a comment, the compiler says, "An interesting inclusion in [the medley] is "Mariannes," a song Belafonte never committed to vinyl before (the hit was by the Easy Riders)."
Audio is indicated but the file is corrupted and only the first 30 seconds of the medley can be heard.
http://www.akh.se/harbel/vpsx6077.html

The medley track (14) can be bought as mp3 here: http://www.discoogle.com/wiki/Belafonte_Harry_-_Belafonte...Live!_(Us,1972,Vpsx-6077,LIVE)