diff --git a/book/credits.md b/book/credits.md
index 060159b..56329f6 100644
--- a/book/credits.md
+++ b/book/credits.md
@@ -3,13 +3,13 @@
 
 You can refer to this book as:
 
-> Teachbooks Team (2024) _TeachBooks Manual_. https://github.com/TeachBooks/manual
+> Teachbooks Team (2024), _TeachBooks Manual_. https://github.com/TeachBooks/manual
 
 The introduction, structure of the book and formatting of contents is done by the Editors. Some chapters and pages have additional primary authors who are identified within the book either at the bottom of the first page in a chapter, or at the bottom of an individual page, as necessary. If an author is not listed on a particular page, it is by the Editors.
 
 We anticipate that the content of this book will change significantly. Therefore, if you'd like to refer to a specific chapter, we recommend using the source code directly with the citation that refers to the GitHub repository and lists the date and name of the file. Although content will be added over time, chapter titles and URL's in this book are expected to remain relatively static. You can refer to individual chapters or pages within this book as:
 
-> `<Primary Author>` (2024) `<Title of Chapter or Page>`. In TeachBook Team, _TeachBooks Manual_. https://github.com/TeachBooks/manual (`./book/intro/` chapter, accessed `<date>`).
+> `<Primary Author>` (2024), `<Title of Chapter or Page>`. In TeachBook Team, _TeachBooks Manual_. https://github.com/TeachBooks/manual (`./book/intro/` chapter, accessed `<date>`).
 
 (editor)=
 ## Editor