Hackworth, Green Haywood
Digest of international law volume II, chapters VI-VIII
Government Printing Office, 1941
 Buku Teks SO
Hackworth, Green Haywood
Digest of international law volume VII, chapters XXII-XXIV
Government Printing Office, 1943
 Buku Teks SO
Hackworth, Green Haywood
Digest of international law volume I, chapters I-V
Government Printing Office, 1940
 Buku Teks SO
Hackworth, Green Haywood
Digest of international law (Volume V)
Government Printing Office, 1943
 Buku Teks SO
Hackworth, Green Haywood
Digest of international law (Volume IV)
Government Printing Office, 1942
 Buku Teks SO