$28.50

Beare / Gardner, Macmillan

$9.60

Viv Lambert, Macmillan

$14.40

Paul a Davies, Macmillan

$5.76

Maria Latorraca, Richmond

$18.21

$60.00

$13.66

$29.00

S. Brewster - A. Lane, Richmond

$37.95

$5.76

Michael Rost, Pearson

$5.76

Paul a Davies, Macmillan

$5.76

Enriqueta Agreda, Romor

$5.76

Loveday, Mcgraw Hill

$6.00

R. Williams & K. Smith, Richmond

$7.28