1. Hudson River, Yonkers to Piermont Maps Public content 1983. Map showing the Hudson River from Yonkers to Piermont.
2. Navesink and Shrewsbury River abundance of the hard clam, Mercenaria mercenaria Maps Public content 1983.
4. Raritan and Sandy Hook bay distribution and abundance of the hard clam, Mercenaria mercenaria Maps Public content 1983.
6. Raritan and Sandy Hook bay distribution of soft clam beds and surf clam bed Maps Public content 1983.