Gaya APA
Swanson, C, P., Staple, M. (1990).
Kingfisher book of 1001 questions and answers animals .
London:
London: Kingfisher books; 1990.
Gaya MLA
Swanson, Carl, P.., Staple, Michele.
"Kingfisher book of 1001 questions and answers animals".
London:
London: Kingfisher books; 1990,
1990.
Text.