APA aipamena

Grolier Limited. (1989). "Questions Kids Ask About Birds (Questions Kids Ask, 7)". Grolier Limited.

Chicago Style aipamena

Grolier Limited. "Questions Kids Ask About Birds (Questions Kids Ask, 7)". Grolier Limited, 1989.

MLA aipamena

Grolier Limited. "Questions Kids Ask About Birds (Questions Kids Ask, 7)". Grolier Limited, 1989.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.