Last GuruDown in Down in the Dirt, Allan Onik, Andree Gendron, Brandon Schaden, Bruce Costello · First published 2018Open the Tome
Natural LightScars Publications, Allan Onik, ayaz daryl nielsen, Bruce Costello, Janet Kuypers, Dan Fitzgerald, Donald Hubbard, Eli Jacquelin, Erren Kelly, Kyle J. Cisco · First published 2018Open the Tome
Oaks in the Urban LandscapeLaurence R. Costello, Bruce W. Hagen, Katherine S. Jones, University of California (System) · First published 2009Open the Tome
