P

Philip Helfrich

3 books found

Books by Philip Helfrich
An assessment of the expected impact of a dredging project for Pala Lagoon, American SamoaPhilip Helfrich
⏱ 1h 16m

An assessment of the expected impact of a dredging project for Pala Lagoon, American Samoa

Philip Helfrich

197576 pp.
Fish poisoning in the tropical PacificPhilip Helfrich
⏱ 16m

Fish poisoning in the tropical Pacific

Philip Helfrich

196116 pp.
The Feasibility of brine shrimp production on Christmas IslandPhilip Helfrich
⏱ 2h 53m

The Feasibility of brine shrimp production on Christmas Island

Philip Helfrich

1973173 pp.