A revised and updated version of
Abraham Kuyper: An Annotated Bibliography 1857-2010 by Tjitze Kuipers (2011)

You can buy a printed edition of this book on the site of the publisher.

1964

[Letter.]
In: Parade der Mannenbroeders. Flitsen uit het Protestantse leven in Nederland in de jaren 1918–1938. [Door] Ben van Kaam.
Wageningen, Zomer & Keuning [1964], p. 37.
Letter, see: 1938.02, p. 332.