http://book.klll.cc/ebooks/author/38937.opds 2025-08-11T18:18:32Z Books by Frenzel, Louis Daniel (sorted by popularity) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-08-11T18:18:32Z https://book.klll.cc/ebooks/37595.opds Ecological Studies of the Timber Wolf in Northeastern Minnesota L. David Mech, Louis Daniel Frenzel, Robert R. Ream, John W. Winship, and P. D. Karns