
TY  - JOUR
A1  - Black, Hermann 
T1  - PRINCIPAL ADDRESS
JF  - The APPEA Journal
JO  - The APPEA Journal
Y1  - 1977
VL  - 17
IS  - 2
SP  - 3
EP  - 6
KW  - 
UR  - https://doi.org/10.1071/AJ76019 
ER  -

