The Complete Forty Hadith

The Forty-Deuce

Studies in Qur'an and Hadith: The Formation of the Islamic Law of Inheritance

Hadith: Muhammad's Legacy In The Medieval And Modern World

Riding With Oliveira: My Time With the Mestre - Forty Years Later

Forty Studies That Changed Psychology: Explorations Into the History of...

The Chopra Center Herbal Handbook: Forty Natural Prescriptions for Perfect...

The Cabaret of Plants: Forty Thousand Years of Plant Life and the Human...