Template:Pfeiffer et al., 1996a
- Pfeiffer, C.M., Walker, C. & Bloss, H.E. 1996. Glomus spurcum: a new endomycorrhizal fungus from Arizona. Mycotaxon: An International Journal for Research on Taxonomy & Nomenclature of Fungi, including Lichens 59: 373–382. Cyberliber (Online)