R7.Dnn.JavaScriptLibraries is a collection of JavaScript libraries used across various R7 projects, packaged as DNN JavaScript Libraries.

Though you could reference main library files via DNN API (dnn:JavaScriptLibraryInclude skinobject or JavaScript.RequestRegistration call), it won't allow you to reference other files (namely secondary scripts and CSS) which packaged along with the main script.

In this case, you could use generic DNN Client API to reference such resources. This approach have evident flaws, but could be still useful is some cases:

<%@ Register TagPrefix="dnn" Namespace="DotNetNuke.Web.Client.ClientResourceManagement" Assembly="DotNetNuke.Web.Client" %>

<dnn:DnnJsInclude runat="server" FilePath="~/Resources/Libraries/BlueimpGallery/02_33_00/js/jquery.blueimp-gallery.min.js" />
<dnn:DnnCssInclude runat="server" FilePath="~/Resources/Libraries/BlueimpGallery/02_33_00/css/blueimp-gallery-video.css" />