In c++

Consider the following definition of the class studentType:

public studentType: public personType
{
public:
void print();
void calculateGPA();
void setID(long id);
void setCourses(const string c[], int noOfC);
void setGrades(const char cG[], int noOfC);

void getID();
void getCourses(string c[], int noOfC);
void getGrades(char cG[], int noOfC);
void studentType(string fName = "", string lastName = "",
long id, string c[] = NULL, char cG[] = NULL, int noOfC = 0);

private:
long studentId;
string courses[6];
char coursesGrade[6]
int noOfCourses;
)

Rewrite the definition of the class studentType so that the functions print and calculateGPA are pure virtual functions.

How would you cite different books by the same author on the works cited page? moore, jack h. folk songs and ballads. salem: poetry press, 1999. print. moore, jack h. ballads in poetry – a critical review. dallas: garden books, 1962. print. moore, jack h. folk songs and ballads. salem: poetry press, 1999. print. –––. ballads in poetry – a critical review. dallas: garden books, 1962. print. moore, jack h. ballads in poetry – a critical review. dallas: garden books, 1962. print. moore, jack h. folk songs and ballads. salem: poetry press, 1999. print. moore, jack h. ballads in poetry – a critical review. dallas: garden books, 1962. print. –––. folk songs and ballads. salem: poetry press, 1999. print.