TY  - BOOK
AU  - Heere,Wybo P.
ED  - TMC ASSER INSTITUUT
TI  - International law and its sources: liber amicorum maarten bos
SN  - 9065443924
U1  - 341 
PY  - 1989///.
CY  - Deventer: 
PB  - Kluwer law and taxation publishers, 
KW  - International law
ER  -