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	1.	The ecology of man : an ecosystem approach / [compiled by] Robert Leo Smith by Smith, Robert Leo [com] Edition: 2nd ed. Material type: Text; Format: print ; Literary form: Not fiction Language: English Publication details: New York : Harper and Row, c1976 Availability: Items available for loan: National Library of India (1)Call number: E/O 301.3082 Sm 64. Place hold Request article Save to lists
	2.	Ecology and field biology / Robert Leo Smith by Smith, Robert Leo Edition: 2nd ed. Material type: Text; Format: print ; Literary form: Not fiction Language: English Publication details: New York : Harper & Row, 1974 Availability: Items available for loan: National Library of India (1)Call number: E/O 574.5 Sm 64. Place hold Request article Save to lists
	3.	Ecology & field biology/ Robert Leo Smith, Thomas M. Smith; illustrated by Robert Leo Smith, Jr. by Smith, Robert Leo Smith, Thomas M. Thomas Michael, 1955- [jt aut.] Edition: 6th ed. Material type: Text; Format: print ; Literary form: Not fiction ; Audience: Adult; Language: English Publication details: San Francisco, Calif. : Benjamin Cummings, c2001 Availability: Items available for loan: National Library of India (1)Call number: E/O 577 Sm 64. Place hold Request article Save to lists

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