Kenneth Gekeler

title	ISBN-13 (ISBN-10)	year of publication
Gekeler Method for Oboe, Bk 1	978-0-7692-2214-1 (0-7692-2214-5)	1985
Gekeler Method for Oboe, Bk 2	978-0-7692-2868-6 (0-7692-2868-2)	1985