TY  - BOOK
AU  - Prinsloo,L.A.
TI  - Die jong wetenskaplike: standerds 9 en 10 
U1  - 530 
PY  - 1971///
CY  - Johannesburg
PB  - Perskor
KW  - Physics
KW  - Study and teaching (Secondary)
KW  - South Africa
KW  - Chemistry
KW  - Science
KW  - fast
N1  - Includes index
ER  -