La MaMa's Digital Collections, Documentation related to "Monday on the Way to Mercury Island" at La MaMa (1971); retrieved June 27, 2017.
5 Ağustos 2017 tarihinde kaynağından arşivlendi.  ^ La MaMa's Digital Collections, Documentation related to "Monday on the Way to Mercury Island" at La MaMa (1971); retrieved June 27, 2017.