Haurongo: Riddet, William
He whakaaturanga anō
Rārangi pukapuka
Brooking, T. W. H. Massey, its early years. Palmerston North, 1977
Campbell, I. L. William Riddet of Massey. Palmerston North, 1966
McGillivray, W. A. New Zealand Dairy Research Institute. Palmerston North, 1978
Obit. Evening Post. 30 Dec. 1958: 8