The phrase "a specific source in" is correct and usable in written English.
It can be used when referring to a particular origin or reference within a larger context, such as research or documentation.
Example: "In my thesis, I will cite a specific source in the bibliography to support my argument."
Alternatives: "a particular reference in" or "a designated source in".
In this investigation MST parameters were embedded in a multiparametric data set to relate MST to other measures of water quality and more specifically with total fecal pollution to get an impression of the role of a specific source group in the contamination of a water resource.
But in his case the dissonance has a specific source: his time in World War I, which physically and emotionally decimated a generation of Europeans.
Finding a specific source of infection in humans is difficult as Campylobacter is carried in the intestinal tract of all types of domestic livestock and many wild animals, including birds.
When compared to the discrete mitochondrial haplotype distribution of historically appropriate source populations, the unique distribution within a specific source population can prove insightful in estimating the contribution of each population.
At the same time daubs of glitter, handfuls of tinsel, and marblelike swirls of paint encroach on the clippings, making it hard to home in on a specific source.
Macrophages are a known source of CXCL10, but their specific source in the lung is poorly defined due to incomplete characterization of macrophage subpopulations.
One specific source in the Netherlands is the pharmacist: some pharmacists put a sticker on the box of oral contraceptives advising women to take folic acid if they stop taking the pill, and this source was mentioned by 15% of the respondents (n = 62).
It is important to also note that images of the family depend upon the specific source in which the image is found and the type of audience that the source aims to reach.
The other trace elements were not, probably because of physiological regulation and/or few specific source in the food web.
