Subject - 511
Spencer Heath Archive Item 511 Penned by Heath on small notepad paper together with Item…
Subject - 513 - Income Distribution For A Typical Business
Spencer Heath Archive Item 513 Pencil by Heath on small notepad paper No date A…
Conversation - 530
Spencer Heath Archive Item 530 Verbatim pencil note by Spencer MacCallum from conversation with Heath…
Conversation - 532
Spencer Heath Archive Item 532 Verbatim pencil note by Spencer MacCallum from conversation Selfishness is…
Conversation - 597
Spencer Heath Archive Item 597 Verbatim note by Spencer MacCallum from conversation I’ve admired that…
Conversation - 631
Spencer Heath Archive Item 631 Random taping by Spencer MacCallum from conversation About 1955? Businessmen…
Subject - 737 - Administering A Business
Spencer Heath Archives Item 737 Pencil by Heath on notepad paper. No date …
Conversation - 841
Spencer Heath Archive Item 841 Verbatim note by Spencer MacCallum from conversation with Heath regarding…
Conversation - 892
Spencer Heath Archive Item 892 Random taping by Spencer MacCallum of conversation with Heath No…
Conversation - 861
Spencer Heath Archive Item 861 Random taping by Spencer MacCallum from conversation with Heath on…