TY - BOOK A1 - Mao Tse tung, T1 - Four essays on philosophy, Peking (Foureign Languages Press) 1966. Y1 - 1966 ER - TY - BOOK A1 - Mao Tse tung, T1 - Selected readings from the works of Mao Tsetung, Peking (Foreign Languages Press) 1971. Y1 - 1971 ER -