TY  - BOOK
AU  - Becker, William Nicholas.
TI  - Quantification of onion vesicular-arbuscular mycorrhizae and their resistance to pyrenochaeta terrestris; thesis
U1  - TH 581.557.24:632.4:635.25(043) M5 
PY  - 1985///
CY  - Ann Arbor
PB  - University Microfilms International
KW  - William Nicholas Becker
KW  - Mycorrhiza,Pyrenochaeta terrestris
ER  -