edited by Robert W. Parry and Goji Kodama. edited by Robert P. Becker and Om Johari. edited by Robert H. Whitaker and John R. Woodard. edited by Robert Hickling and Mounir M. Kamal. edited by Robert D. Allen and Thomas E. Wolfe. edited by Robert Bennett and Robert Estall. edited by Robert C. Whitford and James R. Foster. edited by Robert B. Oxnam and Richard C. Bush. edited by Frank J. Berry and David J. Vaughan. edited by Robert L. Metcalf and William H. Luckmann.