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Biological conservation, ISSN 0006-3207
Journal
eJournal
1952, FAO agricultural studies, Volume no. 4, viii, 189 p. illus., maps.
Book
1957, Prentice-Hall field crop production series, vii, 575 p. illus.
Book
2nd ed. --. --, 324
Book
1995, Fully rev. and updated, 3rd ed., ISBN 0813823722, 391
Book
1985, 2nd ed. --, ISBN 9780801414367, 324
Book
1970, American environmental studies, xvii, 993 p. illus., maps.
Book
1959, McGraw-Hill publications in the agricultural sciences, vii, 298 p. illus., diagrs.
Book
1971, 320 p. illus.
Book
1939, 1st ed., McGraw-Hill series in geography., xvii, 993
Book
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