APA (7th ed.) Citation

Hellinga, W. G. (1973). Problems in the formation of collections in public libraries.

Chicago Style (17th ed.) Citation

Hellinga, Wytze Gerbens. Problems in the Formation of Collections in Public Libraries. 1973.

MLA (9th ed.) Citation

Hellinga, Wytze Gerbens. Problems in the Formation of Collections in Public Libraries. 1973.

Warning: These citations may not always be 100% accurate.