Citazione Stile APA (7a Edizione)
Zeleny, R. O. (1989). Science Year 1990: <The> World Book Annual Science Supplement. A review of Science and Technology During the 1989 School Year (1. ed.). World Book.
Citazione stile Chigago Style (17a edizione)
Zeleny, Robert O. Science Year 1990: <The> World Book Annual Science Supplement. A Review of Science and Technology During the 1989 School Year. 1. ed. Chicago: World Book, 1989.
Citatione MLA (9a ed.)
Zeleny, Robert O. Science Year 1990: <The> World Book Annual Science Supplement. A Review of Science and Technology During the 1989 School Year. 1. ed. World Book, 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.