TY  - BOOK
AU  - Roberts,M.B.V.
TI  - Biology: a functional approach 
SN  - 0177614471
AV  - QH308.7 .R63 1976
PY  - 1976///
CY  - Sunbury-on-Thames
PB  - Nelson
KW  - Biology
N1  - Includes index; Bibliography: p. 637-648
ER  -