Two classes in each other done right

Sorry I am really bad in explaining thnings :D

That is what I mean:

class Boo;

class Foo
{
public:
Foo();
virtual ~Foo();
Foo(const Foo& cop);
Foo& operator=(const Foo& cop);

private:
Boo* b;
}

#include "Boo.h"
Foo::Foo()
{
}
Foo::~Foo()
{
delete b;
}

Foo:Foo(const Foo& cop)
{
delete b;
b = new Foo();
b = cop.b;
}

Foo& Foo::operator=(const Foo& cop)
{
delete b;
b = new Foo();
b = cop.b;

return *this;
}

class Foo;
class Boo
{
public:
Boo();
virtual ~Boo();
Boo(const Boo& cop);
Boo& operator=(const Boo& cop);

private:
Foo* f;
}

#include "Foo.h"
Boo::Boo()
{
}
Boo::~Boo()
{
delete f;
}

Boo:Boo(const Boo& cop)
{
delete b;
f = new Boo();
f = cop.f;
}

Boo& Boo::operator=(const Boo& cop)
{
delete f;
f = new Foo();
f = cop.f;

return *this;
}

Is this correct or there are problems. I know that I have to pass either f or b as a reference because I will create a loop.

My problem is that I need the child variable (in the example above Boo *b) to have access to the parent Foo.
I will post a sample code later tonight.