Music App iOS 7.1 - Missing Repeat Button
I have a new iPhone 5S and I have an Audiobook that I listen to using the iOS Music App. The problem is that I would like to listen to this audiobook on a loop and I cannot find a 'Repeat' or 'Loop' button or icon to select. My iPod Shuffle has this feature and I cannot figure out how to make this work on Apple's flagship software? I have looked everywhere in the settings and I cannot locate this option. Please help.
iPhone 5s, iOS 7.1