TY  - BOOK
AU  - Koba Susan
AU  -  Tweed Anne
TI  - Hard to teach biology concepts: designing instruction aligned to the NGSS:  Tweed Anne    
SN  - 9789386105851 (pbk)
U1  - G, Q7 Carb 
PY  - 2015///
CY  - New
PB  - Delhi Viva Books        
KW  -  Acronyms
KW  - Variations of traits
N1  - References 291-308p.; Appendix 1-3 309-324p.; Index 325-336p
ER  -