Cite Them Right 11th edition - Harvard

David Kjerrumgaard and David Kjerrumgaard (2021) Apache Pulsar in Action.

Chicago Manual of Style 17th edition (full note)

David Kjerrumgaard, and David Kjerrumgaard. Apache Pulsar in Action.

American Psychological Association 7th edition

David Kjerrumgaard, & David Kjerrumgaard. (2021). Apache Pulsar in Action.

Modern Language Association 9th edition

David Kjerrumgaard, and David Kjerrumgaard. Apache Pulsar in Action. 2021.

ISO-690 (author-date, Deutsch)

DAVID KJERRUMGAARD and DAVID KJERRUMGAARD, 2021. Apache Pulsar in Action

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