World's Best Science Fiction 1970 by Donald A. Wollheim, Terry Carr, Richard Wilson, Robert Silverberg, Larry Niven, Alexei Panshin, Suzette Haden Elgin, James Tiptree Jr., Michael G. Coney, Harlan Ellison, Bruce McAllister, Fritz Leiber, Ursula K. Le Guin, Norman Spinrad, Keith Roberts