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Mark Clifton
Mark Irwin Clifton was an American science fiction writer, the co-winner of the second Hugo Award for best novel. He began publishing in May 1952 with the widely anthologized story "What Have I Done?".
Books18
with Lester del Rey, H. B. Fyfe and Tom Godwin
with Frank Riley
with Andre Norton
with Henry Slesar
with Frank Riley and Miquel Barcelo
with Katherine MacLean and Peter Phillips
with Frank Riley
with Frank Riley
with Frank Riley and Gabriele Tamburini















