APA (7th ed.) Citation

Sillem, E., & Boekraad, A. J. (1969). The philosophical notebook of John Henry Newman. Nauwelaerts Publishing House.

Chicago Style (17th ed.) Citation

Sillem, Edward, and Adrian J. Boekraad. The Philosophical Notebook of John Henry Newman. Louvain: Nauwelaerts Publishing House, 1969.

MLA (9th ed.) Citation

Sillem, Edward, and Adrian J. Boekraad. The Philosophical Notebook of John Henry Newman. Nauwelaerts Publishing House, 1969.