Columbia subject headings:
Children's gardens--Greece--Athens--Designs and plans.
Landscape architecture--Greece--Athens--Designs and plans.
Pikiōnēs, Dēmētrēs, 1887-1968.
Harvard subject headings:
Children's gardens--Greece--Athens--Designs and plans.
Landscape architecture--Greece--Athens--Designs and plans.
Pikiōnēs, Dēmētrēs, 1887-1968.
Princeton subject headings:
Children's gardens--Greece--Athens--Designs and plans.
Landscape architecture--Greece--Athens--Designs and plans.
Pikiōnēs, Dēmētrēs, 1887-1968.