can't capture the input

I enter the value , but the program doesn't capture the value
what's the problem ?

Code:

---

#include<stdio.h>


struct book
{
        float fPrice;
        int iNumPages;
        int iYear;
};


void get_details( float* , int*, int* );
int main()
{
        struct book sMybook = { 25.50 , 690 , 2005};
        struct book sHerbook;


        float fdiff;
        float x;
        int y, z;


       
        get_details( &x ,&y ,&z);


        x=sHerbook.fPrice;
        y=sHerbook.iNumPages;
        z=sHerbook.iYear;


        printf("My book :\n");
        printf("%.2f\t%d\t%d\n", sMybook.fPrice, sMybook.iNumPages, sMybook.iYear );


        printf("Her book :\n");
        printf("%.2f\t%d\t%d\n", sHerbook.fPrice, sHerbook.iNumPages, sHerbook.iYear);


        fdiff = sMybook.fPrice - sHerbook.fPrice;
        printf("the difference in price is %.4f\n", fdiff );






        if (sMybook.iYear > sHerbook.iYear )
                printf("Mine is greatest ");
        else
                printf("Her's is greatest");


        return 0;
}


void get_details( float*a , int*b , int*c )
{
        printf("enter book price:\n");
        scanf("%f", a);
        printf("Enter number of pages:\n");
        scanf("%d", b);
        printf("Enter year:\n");
        scanf("%d", c );
}

---

someone please correct me
Thank you !

> get_details( &x ,&y ,&z);
> x=sHerbook.fPrice;
> y=sHerbook.iNumPages;
> z=sHerbook.iYear;

Perhaps you meant
sHerbook.fPrice = x;

Perhaps you could also do
get_details( &sHerbook.fPrice ,&sHerbook.iNumPages ,&sHerbook.iYear);

oh I see ..
Thank you very much :)