Miftāḥ al-mu'āmalāt
Contributors: Riyāḥī, Muḥammad Amīn.
Series: Intishārāt-i Bunyād-i Farhang-i Īrān, 95.  'Ilm dar Īrān, 12
Publisher: Bunyād-i Farhang-i Īrān
Published: 1970
Place of publication: Tihrān
Language: per
Number of pages: 43287
Subjects: Geometrical drawing.