The sources will be picked from the list that has been used in the provided study. Each source will be analyzed separately and the reason why it was important to use it will also be given and how it helped in making the paper complete.
Sher is this is one of the most important sources that have been used in this study. This source has been used throughout the study to provide concrete information on Nacobbus. Sher gives the required information about the Genus Nacobbus (222-227). According to this source the genus contains only two valid species which are indicated to be the Nacobbus dorsalis and N. aberrans. This source goes ahead to state where these two species are normally found. It indicates that N. aberrans is normally an important parasite of various vegetables like beans, chili, tomatoes and pepper. Further into the study, Sher has been extensively used to give information on variability that has been seen in Nacobbus (222-227). The source has been used to give information on morphological characteristic of N. aberrans. It reveals the various ranges of morphometrics of N. aberrans from various geographical locations in the world, thereby helping in understanding the various characteristics of the organism being studied. The reason why Sher is considered one of the important sources that has been used is the amount of information that has been obtained from this source on the characteristics and morphology of N. aberrans.
The second source that has been considered among the 10 most important sources in this study is Thorne (1949). Thorne is talking about the new classification of the Tylenchida. It is one the proceedings of the Helminthological Society of Washington. This source has been used to give information on various discoveries that were made on Nacobbus in different regions of the world. The source has been used to give information on taxonomy of Nacobbus (Thorne 57).