APA
Bos Marrten,, . (1973). The present state of international law and other essays. Netherlands: Kluwer.
Chicago
Bos Marrten,, . 1973. The present state of international law and other essays. Netherlands: Kluwer.
Harvard
Bos Marrten,, . (1973). The present state of international law and other essays. Netherlands: Kluwer.
MLA
Bos Marrten,, . The present state of international law and other essays. Netherlands: Kluwer. 1973.