Between Pacific tides. An account of the habits and habitats of some ... of the common, conspicuous sea-shore invertebrates of the Pacific Coast between Sitka, Alaska, and Northern Mexico. [With plates and a bibliography.]
Ricketts, Edward Flanders.
Calvin, Jack.
[Palo Alto] Calif. & London, 
1939.
Joint authors: Edward Flanders Ricketts and Jack Calvin.