Trace fossils and problematica, in Teichert, C., ed., Treatise on invertebrate paleontology, Part W, Miscellanea, Supplement 1

Hantzschel, W., 1975, Trace fossils and problematica, in Teichert, C., ed., Treatise on invertebrate paleontology, Part W, Miscellanea, Supplement 1: Geological Society and America, and Lawrence,University of Kansas Press, 2nd ed., revised, enlarged, p. W1-W269 [entire volume].