- Explorations Of The Upper Usumatsintla And Adjacent Region: Altar De Sacrificios, Seibal, Itsimté-sácluk, Cankuen: Report Of Explorations For The Museum
- Explorations in the Department of Peten, Guatemala, Tikal: Report of Explorations for the Museum, Volume 5, Issues 1-3
- Memoirs of the Peabody Museum of American Archaeology and Ethnology, Harvard University Vol.Ii-No.2: Researches in the Central Portion of the Usumatsintla Valley
- Explorations of the Upper Usumatsintla and Adjacent Region: Altar de Sacrificos, Seibal, Itsimté-Sácluk, Cankuen : Report of Explorations for the Museum: 4
- Explorations of the Upper Usumatsintla and Adjacent Region: Altar de Sacrificos, Seibal, Itsimté-Sácluk, Cankuen: Report of Explorations for the Museum: 4