Annotated bibliography of Lower Paleozoic sponges of North America /
[by] J. Keith Rigby -- and Matthew H. Nitecki --.
APA Citation
Rigby, J. Keith., Nitecki, M. H.. (1968). Annotated bibliography of Lower Paleozoic sponges of North America. [Chicago]: Field Museum Press .
MLA Citation
Rigby, J. Keith, and Matthew H. Nitecki. Annotated Bibliography of Lower Paleozoic Sponges of North America. [Chicago]: Field Museum Press , 1968.
Warning: These citations may not always be complete (especially for serials).