APA (7th ed.) Citation

Speenhoff, J. H. In memoriam Herman Heijermans.

Chicago Style (17th ed.) Citation

Speenhoff, Jakobus Hendrikus. In Memoriam Herman Heijermans.

MLA (8th ed.) Citation

Speenhoff, Jakobus Hendrikus. In Memoriam Herman Heijermans.

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