Ball, B. (1968). Timepiece. Science Fiction Book Club by arrangement with Dobson Books.
Citazione stile Chigago Style (17a edizione)Ball, Brian. Timepiece. London: Science Fiction Book Club by arrangement with Dobson Books, 1968.
Citatione MLA (8a ed.)Ball, Brian. Timepiece. Science Fiction Book Club by arrangement with Dobson Books, 1968.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.