George Beal

Što znamo o biljkama

Što znamo o energiji?

An educational and richly illustrated children's encyclopedia that explains—in simple terms—energy sources, forms of energy, its application in everyday life, and the importance of conserving it.

Što znamo o svijetu?

An interesting and richly illustrated educational encyclopedia for children that reveals fascinating facts about our planet, nature and people through simple questions and answers.

Što znamo o vremenu?

An instructive and richly illustrated children's encyclopedia that explains weather phenomena, climate and the way meteorologists study them in a simple and accessible way.