Rich Johnson. Richard L. Jamison , 编. Ancient Steam Pit Cooking. Primitive Outdoor Skills (Horizon Publishers). March 1999: 33 [2018-12-16]. ISBN 0-88290-666-6. (原始内容存档于2021-04-27).
Rich Johnson. Richard L. Jamison , 编. Ancient Steam Pit Cooking. Primitive Outdoor Skills (Horizon Publishers). March 1999: 33 [2018-12-16]. ISBN 0-88290-666-6. (原始内容存档于2021-04-27).