TY  - BOOK
AU  - Dennis,W.Michael
AU  - Isom,B.G.
ED  - American Society for Testing and Materials.
TI  - Ecological assessment of macrophyton: collection, use, and meaning of data : a symposium sponsored by ASTM Committee D-19 on Water, Fort Lauderdale, FL, 15-16 Jan., 1983 
SN  - 0803102046 (pbk.)
AV  - QK930 .E26 1984
U1  - 581 14
PY  - 1984///
CY  - Philadelphia, PA
PB  - ASTM
KW  - Aquatic plants
KW  - Ecology
KW  - Research
KW  - Methodology
KW  - Congresses
KW  - Sampling
KW  - Plant populations
KW  - Measurement
KW  - Sinh thái học
KW  - Thực vật dưới nước
KW  - Thực vật học
N1  - Includes bibliographies and index
ER  -