Παραπομπή σε μορφή APA (7η εκδ.)

International Society for Horticultural Science. (1993). Horticultural research international: Directory of horticultural research institutes and their activities in 74 countries. International Society for Horticultural Science - ISHS.

Παραπομπή σε μορφή Chicago (17η εκδ.)

International Society for Horticultural Science. Horticultural Research International: Directory of Horticultural Research Institutes and Their Activities in 74 Countries. Wageningen: International Society for Horticultural Science - ISHS, 1993.

Παραπομπή σε μορφή MLA (8th εκδ.)

International Society for Horticultural Science. Horticultural Research International: Directory of Horticultural Research Institutes and Their Activities in 74 Countries. International Society for Horticultural Science - ISHS, 1993.