13. | | Autor: Rizzotto, Rodolfo Alberto | |
14. | | Autor: Haylock, Ron | |
15. | | Autor: Cockerell, Nancy | |
16. | | Autor: Cockerell, Nancy | |
17. | | Autor: Damon, Anthony J. Coautor: ; Meek, E. Kent | |
18. | | Autor: Cockerell, Nancy | |
19. | | Autor: McGahey, Stan | |
20. | | Autor: Treitel, Richard Coautor: ; Fockler, Shirley | |
21. | | Autor: Stewart, Trevor A. | |
22. | | Autor: Smith, Peter D. | |
23. | | Autor: Cockerell, Nancy | |
24. | | Autor: Ogilvie, James Coautor: ; Dickinson, Conrad | |