Chacko, V. (1965). Manual on sampling techniques for forest surveys. The Manager of Publications.
Chicago-čujuhus (17. p.)Chacko, V.J. Manual on Sampling Techniques for Forest Surveys. Delhi: The Manager of Publications, 1965.
MLA-čujuhus (9. p.)Chacko, V.J. Manual on Sampling Techniques for Forest Surveys. The Manager of Publications, 1965.
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