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.

1997

[Three short letters.]
In: “Ik heb in lang niets van u lieden gehoord …” Supplement op “Het was een schoone dag” de autobiografie van Tijmen van der Kooij (1875–1957).
Almere, Wim van der Kooij 1997, pp. [134a, b, c], 135.
Cf.: 1993.01.
(ISBN: 90-9010430-5.)

Three postcards addressed to Tijmen van der Kooij (cf. 1993.01). The cards were sent from The Hague and stamped on February 27, 1911, November 9, 1917, and June 26, 1919. Facsimiles of both sides of the cards are reprinted on pages [134a, 134b, and 134c] and the text of each brief communication is printed on page 135. In two of the cards Kuyper offers advice; in the third he declines to discuss an item that Van der Kooij had sent for review in De Standaard.