Autor: Alexander Hellemans, 3 titluri

Coperta cărții Istoria descoperirilor stiintifice

Istoria descoperirilor stiintifice

Alexander Hellemans,Bryan Bunch

Coperta cărții Istoria descoperirilor stiintifice - Alexander Hellemans

Istoria descoperirilor stiintifice - Alexander Hellemans

Alexander Hellemans. Bryan Bunch

Coperta cărții 30-Second Quantum Theory

30-Second Quantum Theory

Sharon Ann Holgate,Leon Clifford,Philip Ball,Brian Clegg,Frank Close,Sophie Hebden,Alexander Hellemans,Andrew May