Ḥalqah-ʼi nufūz̲ʹnāpaz̲īr-i gurgʹhā-yi khākistarī
By: Fatḥ Allāh Bīʹniyāz.
Edition: Chāp-i 1.
Publisher: Nashr-i Tawsiʻah; Markaz-i Pakhsh, Muʼassasah-ʼi Sūtak
Published: 1990
Place of publication: Tihrān
Language: per
Number of pages: 190