| Tag | Indicator | Content |
|---|---|---|
| 020 | ## | $a0-12-318750-8 |
| 041 | ## | $aEnglish |
| 082 | ## | $a577 |
| 100 | 0# | $aEfraim Halfon |
| 245 | 00 | $aTheoretical systems ecology : advances and case studies |
| 260 | ## | $aNew York $bAcademic $c1979 |
| 300 | ## | $axvi, 516 p. $bfig. $c24 cm |
| 500 | ## | $aIncludes index. |
| 650 | 00 | $aECOLOGY |