APA-ийн эшлэл(7 дахь хэвлэлт)

Krains , O. (1974). World And Ideas Of Ernst Freund: Search For Genral Principles Of Legislation And Administrative Law. Univ Of Albama.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Krains , Oscar. World And Ideas Of Ernst Freund: Search For Genral Principles Of Legislation And Administrative Law. USA: Univ Of Albama, 1974.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Krains , Oscar. World And Ideas Of Ernst Freund: Search For Genral Principles Of Legislation And Administrative Law. Univ Of Albama, 1974.