Producer, P. (Producer). (Full date of publication). Title of podcast in italics [Audio podcast]. Retrieval information
Example—reference list entry
Bushnell, P. (Producer). (2014, January 5). You call this art?: Part 1 [Audio podcast]. Retrieved from http://www.radionz.co.nz
Example—in-text citation
Bushnell (2014) comments ...
or
… (Bushnell, 2014).