Needham, Paul R.

Trout streams; conditions that determine their productivity and suggestions for stream and lake management, - San Francisco, Holden-Day [1969] - x, 241 p. illus. 24 cm.


Trout.
Fishery management.

639 HOL 1969 A107 Or.
មជ្ឈមណ្ឌលឯការនៃសាកលវិទ្យាល័យភូមិន្ទកសិកម្មចំការដូង

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