If you want to use the following original source information from Harold McGee’s On Food and Cooking, page 15:
Milk has been especially valued for two nutritional characteristics: its richness in calcium and both the quantity and quality of its protein. Recent research has raised some fascinating questions about each of these.
Use a Quotation
To quote it directly:
“Milk has been especially valued for two nutritional characteristics: its richness in calcium and both the quantity and quality of its protein. Recent research has raised some fascinating questions about each of these" (McGee 15).
Paraphrase or Summarize
To rephrase it:
Historically, milk has been prized for two nutritional properties: an abundance of calcium and the amount and quality of its protein although recent research raises some intriguing questions about both of these claims. (McGee 15)
These are examples of in-text citations using MLA Style and will lead the reader to the original source on the Works Cited page.