What is the author's style in Lisa, Bright and Dark by John Neufeld?

The novel is written in standard English. The specialized words and phrases used throughout the narrative are related to several different subjects. For example, Betsy Goodman uses the word "groovy" on more than one occasion. Groovy was a word which was widely used during the 1960s. It was the equivalent of the word "cool", which many people still use today.