In writing titles of Arabic sources in Turkish, as a general rule, only the first letter of the first word should be capitalized. However, if there is a specific name (person, country, city or other book name) within the title of the book, it is capitalized. Titles of works should be formatted in italic.
Example (in Turkish text): Telḫîṣü’l-edille li-ḳavâʿidi’t-tevḥîd, Şerḥu’l-Maḳāṣıd, el-Ḳand fî ẕikri ʿulemâʾi Semerḳand, Kur’ân-ı Kerîm
Example (in English text): Talkhīṣ al-adilla li-qawāʿid al-tawḥīd, Sharḥ al-Maqāṣid, al-Qand fī dhikr ʿulamāʾ Samarqand, al-Qurʾān al-Karīm