Demlo numbers/
Kaprekar, D. R.
Demlo numbers/ with a foreword by Prof. A. A. Krishnaswamy Ayyangar - [Deolali, India: 1948]. - 114 p.: 25 cm.
Demlo numbers.
512.7 / K17d
Demlo numbers/ with a foreword by Prof. A. A. Krishnaswamy Ayyangar - [Deolali, India: 1948]. - 114 p.: 25 cm.
Demlo numbers.
512.7 / K17d