TY - BOOK AU - Summers, Robert S. AU - Hillman, Robert A. , 1946- TI - Contract and related obligation : theory , doctrine , and practice T2 - American casebook series SN - 0314324933 AV - KF801.A7S95 1987 PB - West KW - Obligations ( Law ) - United States - Cases KW - KF N1 - With teacher's manual; Includes index ER -