Sergio Frugis

• Enciclopedia degli uccelli d'Europa
• Guida ai picchi del mondo
• Albero e siepe
• Disney's Wonderful World of Knowledge Vol. 1- Animals
• Disney's Wonderful World of Knowledge, Volume 6, Birds, Fish and Insects
• Guida Naturalistica al Po
• Ornithological observations from Corsica
• Uccelli
• Wonderfulworld of knowledge