BioStor
 | Studies in the flora of Lower California and adjacent islands Alice Eastwood (1929) Proceedings of the California Academy of Sciences 18: 393-484 |
 | The fauna and flora of the El Segundo sand dunes. II. The dune case-bearer beetles of the genus Exema with review of the genus (1940) Bulletin of The Southern California Academy of Sciences 39: 6-27 |
 | A Strepsipterous parasite of a leaf hopper, with descriptions of related species from the same host genus (1941) Bulletin of The Southern California Academy of Sciences 40: 1-10 |
 | A re-evaluation of the genus Ambrosia (Compositae) W W Payne (1964) Journal of the Arnold Arboretum 45: 401-438 |