What is the translation of " 作者不详 " in English?

• author unknown
• knows the author

Examples of using 作者不详 in Chinese and their translations into English

说明：作者不详。
Note: Author unknown.

作者不详（但是观点我基本同意）.
Author Unknown(I agree with it).

这是网上流传很广的一首诗，作者不详。
Another similar poem found online, author unknown.

从英文翻译，作者不详.
English translation, author unknown.

TheDiamondMinesof非洲作者不详ScienceRecord.
The Diamond Mines of Africa Author unknown Science Record.

本文转自互联网，作者不详。
Found on the Internet, author unknown.

蘑菇云在长崎，作者不详.
Mushroom cloud over Nagasaki, author unknown.

作者不详，文章来源网络。
Unknown Author, Internet Source.

本文作者不详。
The author is not known.

评论（作者不详）.
Commentary(Author Not Known).

这个故事发生在一九九四年，作者不详。
This document was prepared in ca 1924, but the author is unknown.

此《怪奇鸟兽图卷》其作者不详。
The origin of this type of marble is not known by the author.

喜欢这篇文章，作者不详。
I love this story, the author is unknown.

这首诗名气很大，但作者不详。
It is a powerful poem, unfortunately the author is unknown.

注：本文来自网络，作者不详。
Attention: this page was submitted by an unknown author.

课文简介：作者不详。
Excerpt: The author is unknown.

这首歌曲的歌词确定来自19世纪，但是作者不详。
The song has an obscure origin-the words date from the 19th century, but no one knows the author.

这些意见都没有掌握任何坚实的基础上，我们只能说，作者不详。
None of these opinions rests on any solid ground, and we can only say that the author is unknown.

TheKoh-i-noor（《光之山》），作者不详，《大型展会的官方介绍与图解目录》，第3部分，第3节，第23类，第695-696页，（1851年）。
The Koh-i-noor, Author unknown, Official Descriptive and Illustrated Catalogue of the Great Exhibition, Part 3, Section 3, Class 23, pp. 695-696,(1851).

本书的作者不详。
The author of the book is unknown.

希伯来书》作者不详。
The author of the Book of Hebrews is unknown.

本书的作者不详。
The author of this book is not known.

雕像的作者不详。
Author of the statue is not known.

网上摘录，作者不详。
From the Internet, author unknown.

本书的作者不详。
The writer of the book is not known.

来源：Twitter；作者不详）.
(Source: Internet; Author Unknown).

希伯来书的作者不详。
The author of Hebrews is not known.

这本书的作者不详。
The author of this book is unknown.