al-Ḍafīrah al-khālidah
Subtitle: qiṣṣah ʻilmīyah
By: bi-qalam Ḥasan Kāmil ʻAwwāḍ
Publisher: al-Hayʼah al-Miṣrīyah al-Āmmah lil-Kitāb
Published: 1972
Place of publication: Cairo
Language: ara
Number of pages: 199
Subjects: DNA; Structure; Genetic code