diff --git a/checking/intro-checking/01.md b/checking/intro-checking/01.md
index 92a1c23..82608ae 100644
--- a/checking/intro-checking/01.md
+++ b/checking/intro-checking/01.md
@@ -24,4 +24,4 @@ This Checking Manual is a guide to the process of checking. It will guide you th
 
 For more examples of the things that need to be checked, see [Types of Things to Check](../vol2-things-to-check/01.md).
 
-**Credits: Quotation used by permission, © 2013, SIL International, Sharing Our Native Culture, p. 69.**
+**Credits: Quotation used by permission, © 2013, Juan Tuggy P., Victor Raúl Paredes E., Sharing Our Native Culture, p. 69.**