Columbia subject headings:
Authors, Greek.
Ikhwān al-Ṣafāʼ. Rasāʼil--Criticism, Textual.
Ikhwān al-Ṣafāʼ. Rasāʼil--Sources.
Islamic philosophy--Early works to 1800.
Science--Early works to 1800.
Harvard subject headings:
Authors, Greek
Ikhwān al-Ṣafāʼ. Rasāʼil--Criticism, Textual.
Ikhwān al-Ṣafāʼ. Rasāʼil--Sources.
Islamic philosophy--Early works to 1800.
Philosophy, Ancient.
Science, Ancient
Science--Early works to 1800
Princeton subject headings:
Authors, Greek.
Ikhwān al-Ṣafāʼ. Rasāʼil--Criticism, Textual.
Ikhwān al-Ṣafāʼ. Rasāʼil--Sources.
Islamic philosophy--Early works to 1800.
Science--Early works to 1800.