diff --git a/Quaternion.cpp b/Quaternion.cpp
index 0107389..1cee2d1 100644
--- a/Quaternion.cpp
+++ b/Quaternion.cpp
@@ -1,3 +1,7 @@
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0.If a copy of the MPL was not distributed with this
+// file, You can obtain one at https ://mozilla.org/MPL/2.0/.
+
 #include "pch.h"
 #include <math.h>
 #include <float.h>
diff --git a/Quaternion.h b/Quaternion.h
index e5ece6d..69ab497 100644
--- a/Quaternion.h
+++ b/Quaternion.h
@@ -1,3 +1,7 @@
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0.If a copy of the MPL was not distributed with this
+// file, You can obtain one at https ://mozilla.org/MPL/2.0/.
+
 #ifndef QUATERNION_H
 #define QUATERNION_H
 
diff --git a/Vector3.cpp b/Vector3.cpp
index fbe6062..385946f 100644
--- a/Vector3.cpp
+++ b/Vector3.cpp
@@ -1,3 +1,7 @@
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0.If a copy of the MPL was not distributed with this
+// file, You can obtain one at https ://mozilla.org/MPL/2.0/.
+
 #include "pch.h"
 #include <math.h>
 #include "Vector3.h"
diff --git a/Vector3.h b/Vector3.h
index 330696a..6140482 100644
--- a/Vector3.h
+++ b/Vector3.h
@@ -1,3 +1,7 @@
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0.If a copy of the MPL was not distributed with this
+// file, You can obtain one at https ://mozilla.org/MPL/2.0/.
+
 #ifndef VECTOR_H
 #define VECTOR_H