Are free online at Google Books, published 1900
Here. [[https://www.google.com/books/edition/New_Jersey_Marriage_Records_1665_1800/aJClhnczztwC?hl=en&gbpv=1&dq=new+jersey+marriage+records&printsec=frontcover]]
That's a great resource, isn't it? It's one of the many records sources documented on the New Netherland project's Church Records page, in the "marriage records outside churches" section and on the Sources-New Jersey page under "Marriages Pre-1848." It's part of the multi-volume series Documents Relating to the Colonial History of the State of New Jersey that has a source page on WikiTree, where there are links to five different free websites that have electronic copies (sometimes images of multiple copies) of Volume 22, the volume that contains the marriage records.
We are lucky to live in a time when these rare books are available for perusal from our armchairs all over the world. These WikiTree pages are created and maintained to help all of us find these wonderful resources. Members should feel free to access these and similar pages. And if you find content that's not already documented on WikiTree, please continue to share the information so it can be added to the relevant pages.
See the research guide to New Jersey sources here: Sources--New Jersey.
Thank you for sharing this!!