TY - RPRT TI - Vacuum hand pump apparatus for collecting water samples from a horizontal intragravel pipe AU - Michael K. Saiki AU - Barbara A. Martin PY - 1996 DO - 10.1577/1548-8675(1996)016<0231:vhpafc>2.3.co;2 UR - https://pubs.usgs.gov/publication/70176140 ID - 70176140 ER -