Myring, L., & des. Roger Priddy, I. A. (1992). Foguetes e as viagens no espaço. Resomnia.
Dyfyniad Arddull ChicagoMyring, Lynn, and Iain Ashman des. Roger Priddy. Foguetes E as Viagens No Espaço. Resomnia, 1992.
Dyfyniad MLAMyring, Lynn, and Iain Ashman des. Roger Priddy. Foguetes E as Viagens No Espaço. Resomnia, 1992.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.