Approach to theory, author Ruby J. Hinrichsen (Melbourne: Allan & Co. Pty. Ltd.), [1946?] Box 27-52 (MUS Aust Theory) Unit ID: 31 Date: [1946?]
Approach to theory, author Ruby J. Hinrichsen (Melbourne: Allan & Co. Pty. Ltd.), [1946?] Box 27-52 (MUS Aust Theory) Unit ID: 32 Date: [1946?]
Approach to theory, author Ruby J. Hinrichsen (Melbourne: Allan & Co. Pty. Ltd.), [1946?] Box 27-52 (MUS Aust Theory) Unit ID: 40 Date: [1946?]
Approach to theory, author Ruby J. Hinrichsen (Melbourne: Allan & Co. Pty. Ltd.), copyright 1946 Box 27-52 (MUS Aust Theory) Unit ID: 30 Date: copyright 1946
Approach to theory, author Ruby J. Hinrichsen (Melbourne: Allan & Co. Pty. Ltd.), copyright 1946 Box 27-52 (MUS Aust Theory) Unit ID: 33 Date: copyright 1946
Approach to theory, author Ruby J. Hinrichsen (Melbourne: Allan & Co. Pty. Ltd.), copyright 1946 Box 27-52 (MUS Aust Theory) Unit ID: 34 Date: copyright 1946
Approach to theory, author Ruby J. Hinrichsen (Melbourne: Allan & Co. Pty. Ltd.), copyright 1946 Box 27-52 (MUS Aust Theory) Unit ID: 36 Date: copyright 1946
Approach to theory, author Ruby J. Hinrichsen (Melbourne: Allan & Co. Pty. Ltd.), copyright 1946 Box 27-52 (MUS Aust Theory) Unit ID: 37 Date: copyright 1946
Approach to theory, author Ruby J. Hinrichsen (Melbourne: Allan & Co. Pty. Ltd.), copyright 1946 Box 27-52 (MUS Aust Theory) Unit ID: 38 Date: copyright 1946
Approach to theory, author Ruby J. Hinrichsen (Melbourne: Allan & Co. Pty. Ltd.), copyright 1946 Box 27-52 (MUS Aust Theory) Unit ID: 39 Date: copyright 1946