div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=reference-sapol-s-heycock-1988htmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: Reference - SAPOL S Heycock 1988 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader036vdocumentsnetreader036viewer202207170355c3fa43bb61ebbc5c8b4855html5thumbnails1jpg width=140 height=200 divdiv