APA aipamena

Ecke, H. Spying still goes on: Four spies speak / compiled by H. Ecke, foreword by Richard W. Rowan. Translated from the German.

Chicago Style aipamena

Ecke, H. Spying Still Goes on: Four Spies Speak / Compiled by H. Ecke, Foreword by Richard W. Rowan. Translated from the German. New York : Loring & Mussey, 1935.

MLA aipamena

Ecke, H. Spying Still Goes on: Four Spies Speak / Compiled by H. Ecke, Foreword by Richard W. Rowan. Translated from the German.