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?

Ein interessantes und reich illustriertes Wissenslexikon für Kinder, das anhand einfacher Fragen und Antworten faszinierende Fakten über unseren Planeten, die Natur und die Menschen vermittelt.

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.